Hole
Use Hole to create intelligent circular cut features driven by explicit hole geometry parameters rather than manually sketching each pocket. Hole features are parametric, supporting industry-standard configurations for clearance holes, threaded holes, counterbores, and countersinks.
Options
Face
Select the flat face where you want to place the hole. The hole will be drilled perpendicular to this face.
Hole Location
Specify the X,Y coordinates for the hole center on the selected face, measured in the face's local coordinate system.
Hole Depth Type
Choose how deep the hole goes:
- Blind - Stops at a specified depth
- Through - Goes completely through the part
Blind Depth
If you chose "Blind" above, specify how deep to drill from the face surface.
Hole Diameter
The diameter of the main cylindrical hole.
Hole Type
Choose the hole configuration:
- Simple - Just a basic hole
- Counterbore - Has an enlarged upper section for socket-head screws
- Countersink - Has a conical upper section for flat-head screws
Counterbore Depth
For counterbored holes, how deep the enlarged section goes. Should fit the fastener head height plus a bit of clearance.
Counterbore Diameter
For counterbored holes, the diameter of the enlarged section. Must be bigger than the main hole and should match the fastener head.
Countersink Angle
For countersunk holes, the included angle of the cone. Common values:
- 90° - ISO standard flat-head screws
- 82° - ANSI standard flat-head screws
- 100° or 120° - Aerospace applications
Countersink Diameter
For countersunk holes, the diameter at the surface. Should match or slightly exceed the fastener head diameter.
Hole Bottom
For blind holes, choose the bottom shape:
- Flat - Flat bottom (typical for end mill drilling)
- Drill Point - Conical tip like a twist drill makes
Drill Point Angle
If you chose "Drill Point" above, specify the cone angle. Standard angles:
- 118° - General purpose (steel, aluminum)
- 135° - Self-centering (harder materials)
Fastener Clearance Guidelines
For clearance holes, add 0.2-0.5mm to the nominal screw size:
- M3 screw → 3.2-3.4mm hole
- M5 screw → 5.3-5.5mm hole
- 1/4" bolt → 0.266"-0.281" hole