Custom Round-to-Rectangular Tube Adapter STL 3D file ⌀84 mm to 85×85 mm, thickness 2 mm 📦#3219

STL Download STL 1
Create a new model expert
from scratch search for a model
Model in STL format of a round-to-rectangular adapter with an external diameter of ⌀84 mm and a rectangular section with internal dimensions 85×85 mm. The shell thickness is 2 mm and the overall length is 150 mm.
Generation date: 2025-11-11
3D Model Round-to-Rectangular Tube Adapter STL 3D file ⌀84 mm to 85×85 mm, thickness 2 mm

3D model download

Free
  • round-to-rectangular-adapter-d_model3219-nb0_dd{id}.stl : 1.1 Mo
STL Mesh quality : Linear deflection 0.0005 Angular deflection 0.05
No compliance warranty No compliance warranty
(Internal and private use, non-commercial – no distribution – no derivatives)
Safe download
Instant .zip download — no email, no account

Values for this model

This model was generated by the Round to rectangular adapter template, with the following values:
Parameter Value
#1 cylinder outer diameter 84 mm (≃3 5/16 in)
#2 cylinder inlet length 30 mm (≃1 3/16 in)
#3 rectangle internal length 85 mm (≃3.35 in)
#4 rectangle internal height 85 mm (≃3.35 in)
#5 rectangle inlet length 85 mm (≃3.35 in)
#6 offset Z 0 mm (0 in)
#7 offset Y 0 mm (0 in)
#8 total length 150 mm (≃5.91 in)
#9 thickness 2 mm (≃0.08 in)
#10 chamfer no chamfer
Metadata Value
Cylinder internal diameter 80 mm (≃3.15 in)
illustration of the parameters
Parameter overview

  • If the chamfer option on the ends is enabled, the chamfer length is equal to half the thickness.
  • The stop at the bottom of the rectangular section has a width equal to half the thickness.

Labels are used in the naming of the downloaded 3D files.

Parameter Label
#1 cylinder outer diameter diaC
#2 cylinder inlet length lentC
#3 rectangle internal length lenIR
#4 rectangle internal height heiIR
#5 rectangle inlet length lentR
#6 offset Z ofsZ
#7 offset Y ofsY
#8 total length lenT
#9 thickness thi
#10 chamfer cha

Related 3D models

To search for a model based on your own parameters, go to the template page Round to rectangular adapter 

Round-to-Rectangular Tube Adapter STL 3D file ⌀75 mm to 84×80 mm, thickness 2 mm (📦 #7627)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL 3D file ⌀75 mm to 84×80 mm, thickness 2 mm
3D file in STL format of a round-to-rectangular tube adapter with an external diameter of ⌀75 mm and a rectangular section with internal dimensions 84×80 mm. The wall thickness is 2 mm and the total length is 145 mm.
Parameter Value Unit
cylinder outer diameter 75 mm
cylinder inlet length 25 mm
rectangle internal length 84 mm
rectangle internal height 80 mm
rectangle inlet length 100 mm
offset Z 0 mm
offset Y 0 mm
total length 145 mm
thickness 2 mm
chamfer no chamfer

Round-to-Rectangular Tube Adapter STL file ⌀90 mm to 100×50 mm, thickness 2 mm (📦 #3061)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL file ⌀90 mm to 100×50 mm, thickness 2 mm
Download this 3D model in STL format of a round-to-rectangular adapter with an external diameter of ⌀90 mm and a rectangular section with internal dimensions 100×50 mm. The shell thickness is 2 mm and the overall length is 120 mm.
Parameter Value Unit
cylinder outer diameter 90 mm
cylinder inlet length 20 mm
rectangle internal length 100 mm
rectangle internal height 50 mm
rectangle inlet length 80 mm
offset Z 0 mm
offset Y 0 mm
total length 120 mm
thickness 2 mm
chamfer no chamfer

Round-to-Rectangular Tube Adapter STL file ⌀70 mm to 70×90 mm, thickness 2 mm + offset (📦 #2046)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL file ⌀70 mm to 70×90 mm, thickness 2 mm + offset
Download this model in STL format of a round-to-rectangular tube adapter with an external diameter of ⌀70 mm and a rectangular section with internal dimensions 70×90 mm. The shell thickness is 2 mm and the total length is 160 mm. The adapter has an offset of 5 mm along the Y axis and 5 mm along the Z axis. A chamfer is applied on the outside of the cylindrical end.
Parameter Value Unit
cylinder outer diameter 70 mm
cylinder inlet length 50 mm
rectangle internal length 70 mm
rectangle internal height 90 mm
rectangle inlet length 90 mm
offset Z 5 mm
offset Y 5 mm
total length 160 mm
thickness 2 mm
chamfer chamfer on t...

Round-to-Rectangular Tube Adapter STL 3D file ⌀100 mm to 150×50 mm, thickness 2 mm (📦 #1632)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL 3D file ⌀100 mm to 150×50 mm, thickness 2 mm
Download this 3D file in STL format of a round-to-rectangular adapter with an outer diameter of ⌀100 mm and a rectangular section with inner dimensions 150×50 mm. The wall thickness is 2 mm and the total length is 150 mm.
Parameter Value Unit
cylinder outer diameter 100 mm
cylinder inlet length 50 mm
rectangle internal length 150 mm
rectangle internal height 50 mm
rectangle inlet length 80 mm
offset Z 0 mm
offset Y 0 mm
total length 150 mm
thickness 2 mm
chamfer no chamfer

Round-to-Rectangular Tube Adapter STL 3D file ⌀95 mm to 145×65 mm, thickness 2 mm (📦 #7517)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL 3D file ⌀95 mm to 145×65 mm, thickness 2 mm
3D model in STL format of a round-to-rectangular adapter with an external diameter of ⌀95 mm and a rectangular section with inner dimensions 145×65 mm. The shell thickness is 2 mm and the overall length is 160 mm.
Parameter Value Unit
cylinder outer diameter 95 mm
cylinder inlet length 10 mm
rectangle internal length 145 mm
rectangle internal height 65 mm
rectangle inlet length 60 mm
offset Z 0 mm
offset Y 0 mm
total length 160 mm
thickness 2 mm
chamfer no chamfer

Round-to-Rectangular Tube Adapter STL 3D file ⌀100 mm to 150×50 mm, thickness 2 mm (📦 #1615)

1 object(s) - format STL (5.0/5) 1 vote(s)
Round-to-Rectangular Tube Adapter STL 3D file ⌀100 mm to 150×50 mm, thickness 2 mm
File in STL format of a round-to-rectangular adapter with an external diameter of ⌀100 mm and a rectangular section with inner dimensions 150×50 mm. The wall thickness is 2 mm and the overall length is 150 mm. A chamfer is present on the outside of the cylindrical end to ease insertion.
Parameter Value Unit
cylinder outer diameter 100 mm
cylinder inlet length 50 mm
rectangle internal length 150 mm
rectangle internal height 50 mm
rectangle inlet length 80 mm
offset Z 0 mm
offset Y 0 mm
total length 150 mm
thickness 2 mm
chamfer chamfer on t...

Round-to-Rectangular Tube Adapter STL file ⌀80 mm to 100.5×73.5 mm, thickness 2 mm (📦 #9080)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL file ⌀80 mm to 100.5×73.5 mm, thickness 2 mm
3D model in STL format of a round-to-rectangular adapter with an external diameter of ⌀80 mm and a rectangular section with internal dimensions 100.5×73.5 mm. The wall thickness is 2 mm and the overall length is 150 mm.
Parameter Value Unit
cylinder outer diameter 80 mm
cylinder inlet length 50 mm
rectangle internal length 100.5 mm
rectangle internal height 73.5 mm
rectangle inlet length 50 mm
offset Z 0 mm
offset Y 0 mm
total length 150 mm
thickness 2 mm
chamfer no chamfer

Round-to-Rectangular Tube Adapter STL file ⌀126 mm to 30×63.5 mm, thickness 3 mm (📦 #5405)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL file ⌀126 mm to 30×63.5 mm, thickness 3 mm
3D file in STL format of a round-to-rectangular tube adapter with an external diameter of ⌀126 mm and a rectangular section with inner dimensions 30×63.5 mm. The wall thickness is 3 mm and the total length is 150 mm.
Parameter Value Unit
cylinder outer diameter 126 mm
cylinder inlet length 30 mm
rectangle internal length 30 mm
rectangle internal height 63.5 mm
rectangle inlet length 80 mm
offset Z 0 mm
offset Y 0 mm
total length 150 mm
thickness 3 mm
chamfer no chamfer

Round-to-Rectangular Tube Adapter STL file ⌀126 mm to 139×63.5 mm, thickness 3 mm + offset (📦 #2121)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL file ⌀126 mm to 139×63.5 mm, thickness 3 mm + offset
Download this 3D model in STL format of a round-to-rectangular adapter with an external diameter of ⌀126 mm and a rectangular section with internal dimensions 139×63.5 mm. The wall thickness is 3 mm and the total length is 150 mm. The adapter has an offset of 3 mm along the Y axis and 3 mm along the Z axis.
Parameter Value Unit
cylinder outer diameter 126 mm
cylinder inlet length 30 mm
rectangle internal length 139 mm
rectangle internal height 63.5 mm
rectangle inlet length 80 mm
offset Z 3 mm
offset Y 3 mm
total length 150 mm
thickness 3 mm
chamfer no chamfer

Round-to-Rectangular Tube Adapter STL file ⌀80 mm to 105×50 mm, thickness 2 mm (📦 #1772)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL file ⌀80 mm to 105×50 mm, thickness 2 mm
Download this 3D file in STL format of a round-to-rectangular adapter with an outer diameter of ⌀80 mm and a rectangular section with inner dimensions 105×50 mm. The wall thickness is 2 mm and the total length is 150 mm.
Parameter Value Unit
cylinder outer diameter 80 mm
cylinder inlet length 50 mm
rectangle internal length 105 mm
rectangle internal height 50 mm
rectangle inlet length 50 mm
offset Z 0 mm
offset Y 0 mm
total length 150 mm
thickness 2 mm
chamfer no chamfer

Round-to-Rectangular Tube Adapter STL 3D file ⌀27 mm to 33×30 mm, thickness 2 mm (📦 #2477)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL 3D file ⌀27 mm to 33×30 mm, thickness 2 mm
Download this file in STL format of a round-to-rectangular adapter with an external diameter of ⌀27 mm and a rectangular section with internal dimensions 33×30 mm. The wall thickness is 2 mm and the overall length is 115 mm.
Parameter Value Unit
cylinder outer diameter 27 mm
cylinder inlet length 20 mm
rectangle internal length 33 mm
rectangle internal height 30 mm
rectangle inlet length 75 mm
offset Z 0 mm
offset Y 0 mm
total length 115 mm
thickness 2 mm
chamfer no chamfer

Round-to-Rectangular Tube Adapter STL file ⌀126.5 mm to 100×100 mm, thickness 3 mm (📦 #5162)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL file ⌀126.5 mm to 100×100 mm, thickness 3 mm
Download this 3D model in STL format of a round-to-rectangular tube adapter with an outer diameter of ⌀126.5 mm and a rectangular section with inner dimensions 100×100 mm. The wall thickness is 3 mm and the total length is 200 mm.
Parameter Value Unit
cylinder outer diameter 126.5 mm
cylinder inlet length 40 mm
rectangle internal length 100 mm
rectangle internal height 100 mm
rectangle inlet length 100 mm
offset Z 0 mm
offset Y 0 mm
total length 200 mm
thickness 3 mm
chamfer no chamfer

Round-to-Rectangular Tube Adapter STL 3D file ⌀85 mm to 105×50 mm, thickness 2 mm (📦 #1654)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL 3D file ⌀85 mm to 105×50 mm, thickness 2 mm
Download this 3D model in STL format of a round-to-rectangular adapter with an outer diameter of ⌀85 mm and a rectangular section with internal dimensions 105×50 mm. The shell thickness is 2 mm and the overall length is 150 mm.
Parameter Value Unit
cylinder outer diameter 85 mm
cylinder inlet length 50 mm
rectangle internal length 105 mm
rectangle internal height 50 mm
rectangle inlet length 46 mm
offset Z 0 mm
offset Y 0 mm
total length 150 mm
thickness 2 mm
chamfer no chamfer

Round-to-Rectangular Tube Adapter STL 3D file ⌀124 mm to 110×55 mm, thickness 2 mm (📦 #6752)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL 3D file ⌀124 mm to 110×55 mm, thickness 2 mm
Download this 3D file in STL format of a round-to-rectangular tube adapter with an outer diameter of ⌀124 mm and a rectangular section with internal dimensions 110×55 mm. The shell thickness is 2 mm and the overall length is 200 mm. A chamfer is present on the outside of the cylindrical end to ease insertion.
Parameter Value Unit
cylinder outer diameter 124 mm
cylinder inlet length 50 mm
rectangle internal length 110 mm
rectangle internal height 55 mm
rectangle inlet length 100 mm
offset Z 0 mm
offset Y 0 mm
total length 200 mm
thickness 2 mm
chamfer chamfer on t...

Round-to-Rectangular Tube Adapter STL 3D file ⌀120 mm to 120×120 mm, thickness 2 mm (📦 #1800)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL 3D file ⌀120 mm to 120×120 mm, thickness 2 mm
Download this model in STL format of a round-to-rectangular tube adapter with an external diameter of ⌀120 mm and a rectangular section with internal dimensions 120×120 mm. The shell thickness is 2 mm and the overall length is 200 mm. A chamfer is applied on the outside of the cylindrical end to ease insertion.
Parameter Value Unit
cylinder outer diameter 120 mm
cylinder inlet length 50 mm
rectangle internal length 120 mm
rectangle internal height 120 mm
rectangle inlet length 100 mm
offset Z 0 mm
offset Y 0 mm
total length 200 mm
thickness 2 mm
chamfer chamfer on t...

Round-to-Rectangular Tube Adapter STL file ⌀106 mm to 92.6×71 mm, thickness 2 mm + offset (📦 #3315)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL file ⌀106 mm to 92.6×71 mm, thickness 2 mm + offset
Model in STL format of a round-to-rectangular tube adapter with an outer diameter of ⌀106 mm and a rectangular section with internal dimensions 92.6×71 mm. The shell thickness is 2 mm and the overall length is 170 mm. The adapter has an offset of 25 mm along the Z axis.
Parameter Value Unit
cylinder outer diameter 106 mm
cylinder inlet length 50 mm
rectangle internal length 92.6 mm
rectangle internal height 71 mm
rectangle inlet length 70 mm
offset Z 25 mm
offset Y 0 mm
total length 170 mm
thickness 2 mm
chamfer no chamfer

Round-to-Rectangular Tube Adapter STL file ⌀120 mm to 100×100 mm, thickness 2 mm (📦 #6002)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL file ⌀120 mm to 100×100 mm, thickness 2 mm
3D file in STL format of a round-to-rectangular adapter with an outer diameter of ⌀120 mm and a rectangular section with internal dimensions 100×100 mm. The shell thickness is 2 mm and the overall length is 120 mm.
Parameter Value Unit
cylinder outer diameter 120 mm
cylinder inlet length 40 mm
rectangle internal length 100 mm
rectangle internal height 100 mm
rectangle inlet length 40 mm
offset Z 0 mm
offset Y 0 mm
total length 120 mm
thickness 2 mm
chamfer no chamfer

Round-to-Rectangular Tube Adapter STL 3D file ⌀100 mm to 100×100 mm, thickness 2 mm (📦 #9072)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL 3D file ⌀100 mm to 100×100 mm, thickness 2 mm
Download this model in STL format of a round-to-rectangular tube adapter with an outer diameter of ⌀100 mm and a rectangular section with inner dimensions 100×100 mm. The shell thickness is 2 mm and the total length is 220 mm.
Parameter Value Unit
cylinder outer diameter 100 mm
cylinder inlet length 50 mm
rectangle internal length 100 mm
rectangle internal height 100 mm
rectangle inlet length 50 mm
offset Z 0 mm
offset Y 0 mm
total length 220 mm
thickness 2 mm
chamfer no chamfer

Round-to-Rectangular Tube Adapter STL 3D file ⌀62 mm to 230×76 mm, thickness 2 mm (📦 #5779)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL 3D file ⌀62 mm to 230×76 mm, thickness 2 mm
3D model in STL format of a round-to-rectangular adapter with an external diameter of ⌀62 mm and a rectangular section with internal dimensions 230×76 mm. The wall thickness is 2 mm and the total length is 150 mm.
Parameter Value Unit
cylinder outer diameter 62 mm
cylinder inlet length 20 mm
rectangle internal length 230 mm
rectangle internal height 76 mm
rectangle inlet length 76 mm
offset Z 0 mm
offset Y 0 mm
total length 150 mm
thickness 2 mm
chamfer no chamfer

Round-to-Rectangular Tube Adapter STL 3D file ⌀106 mm to 94.6×73 mm, thickness 2 mm + offset (📦 #3311)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL 3D file ⌀106 mm to 94.6×73 mm, thickness 2 mm + offset
Download this file in STL format of a round-to-rectangular tube adapter with an external diameter of ⌀106 mm and a rectangular section with inner dimensions 94.6×73 mm. The shell thickness is 2 mm and the total length is 200 mm. The adapter has an offset of 25 mm along the Z axis.
Parameter Value Unit
cylinder outer diameter 106 mm
cylinder inlet length 50 mm
rectangle internal length 94.6 mm
rectangle internal height 73 mm
rectangle inlet length 100 mm
offset Z 25 mm
offset Y 0 mm
total length 200 mm
thickness 2 mm
chamfer no chamfer

Round-to-Rectangular Tube Adapter STL file ⌀92 mm to 160×80 mm, thickness 2 mm + offset (📦 #3422)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL file ⌀92 mm to 160×80 mm, thickness 2 mm + offset
Download this 3D model in STL format of a round-to-rectangular adapter with an external diameter of ⌀92 mm and a rectangular section with internal dimensions 160×80 mm. The shell thickness is 2 mm and the overall length is 140 mm. The adapter has an offset of 12.5 mm along the Z axis.
Parameter Value Unit
cylinder outer diameter 92 mm
cylinder inlet length 50 mm
rectangle internal length 160 mm
rectangle internal height 80 mm
rectangle inlet length 50 mm
offset Z 12.5 mm
offset Y 0 mm
total length 140 mm
thickness 2 mm
chamfer no chamfer

Round-to-Rectangular Tube Adapter STL 3D file ⌀85 mm to 105×50 mm, thickness 2 mm + offset (📦 #1656)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL 3D file ⌀85 mm to 105×50 mm, thickness 2 mm + offset
Download this model in STL format of a round-to-rectangular tube adapter with an outer diameter of ⌀85 mm and a rectangular section with internal dimensions 105×50 mm. The shell thickness is 2 mm and the overall length is 150 mm. The adapter has an offset of 15 mm along the Z axis.
Parameter Value Unit
cylinder outer diameter 85 mm
cylinder inlet length 50 mm
rectangle internal length 105 mm
rectangle internal height 50 mm
rectangle inlet length 46 mm
offset Z 15 mm
offset Y 0 mm
total length 150 mm
thickness 2 mm
chamfer no chamfer

Round-to-Rectangular Tube Adapter STL 3D file ⌀126 mm to 30×63.5 mm, thickness 3 mm + offset (📦 #2122)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL 3D file ⌀126 mm to 30×63.5 mm, thickness 3 mm + offset
3D model in STL format of a round-to-rectangular adapter with an external diameter of ⌀126 mm and a rectangular section with internal dimensions 30×63.5 mm. The wall thickness is 3 mm and the total length is 150 mm. The adapter has an offset of 3 mm along the Y axis and 20.0 mm along the Z axis.
Parameter Value Unit
cylinder outer diameter 126 mm
cylinder inlet length 30 mm
rectangle internal length 30 mm
rectangle internal height 63.5 mm
rectangle inlet length 80 mm
offset Z 20.0 mm
offset Y 3 mm
total length 150 mm
thickness 3 mm
chamfer no chamfer

Round-to-Rectangular Tube Adapter STL 3D file ⌀100 mm to 135×75 mm, thickness 2 mm + offset (📦 #1977)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL 3D file ⌀100 mm to 135×75 mm, thickness 2 mm + offset
Download this model in STL format of a round-to-rectangular adapter with an external diameter of ⌀100 mm and a rectangular section with inner dimensions 135×75 mm. The shell thickness is 2 mm and the overall length is 160 mm. The adapter has an offset of 30 mm along the Z axis.
Parameter Value Unit
cylinder outer diameter 100 mm
cylinder inlet length 35 mm
rectangle internal length 135 mm
rectangle internal height 75 mm
rectangle inlet length 60 mm
offset Z 30 mm
offset Y 0 mm
total length 160 mm
thickness 2 mm
chamfer no chamfer

Round-to-Rectangular Tube Adapter STL 3D file ⌀90 mm to 76×76 mm, thickness 3 mm (📦 #2367)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL 3D file ⌀90 mm to 76×76 mm, thickness 3 mm
Model in STL format of a round-to-rectangular adapter with an outer diameter of ⌀90 mm and a rectangular section with internal dimensions 76×76 mm. The wall thickness is 3 mm and the overall length is 120 mm.
Parameter Value Unit
cylinder outer diameter 90 mm
cylinder inlet length 50 mm
rectangle internal length 76 mm
rectangle internal height 76 mm
rectangle inlet length 50 mm
offset Z 0 mm
offset Y 0 mm
total length 120 mm
thickness 3 mm
chamfer no chamfer

Round-to-Rectangular Tube Adapter STL file ⌀49.1 mm to 53×43 mm, thickness 2 mm + offset (📦 #8078)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL file ⌀49.1 mm to 53×43 mm, thickness 2 mm + offset
3D file in STL format of a round-to-rectangular tube adapter with an external diameter of ⌀49.1 mm and a rectangular section with internal dimensions 53×43 mm. The shell thickness is 2 mm and the total length is 100 mm. The adapter has an offset of 10 mm along the Z axis. A chamfer is applied on the outside of the cylindrical end to ease insertion.
Parameter Value Unit
cylinder outer diameter 49.1 mm
cylinder inlet length 30 mm
rectangle internal length 53 mm
rectangle internal height 43 mm
rectangle inlet length 50 mm
offset Z 10 mm
offset Y 0 mm
total length 100 mm
thickness 2 mm
chamfer chamfer on t...

Round-to-Rectangular Tube Adapter STL file ⌀120 mm to 120×120 mm, thickness 3 mm + offset (📦 #1799)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL file ⌀120 mm to 120×120 mm, thickness 3 mm + offset
Download this 3D model in STL format of a round-to-rectangular tube adapter with an outer diameter of ⌀120 mm and a rectangular section with internal dimensions 120×120 mm. The shell thickness is 3 mm and the total length is 200 mm. The adapter has an offset of 2 mm along the Y axis and 2 mm along the Z axis.
Parameter Value Unit
cylinder outer diameter 120 mm
cylinder inlet length 50 mm
rectangle internal length 120 mm
rectangle internal height 120 mm
rectangle inlet length 100 mm
offset Z 2 mm
offset Y 2 mm
total length 200 mm
thickness 3 mm
chamfer no chamfer