hammer8 hammer8 help Holes, threads & coils

Holes, threads & coils

The Hole tool drills standard fastener holes; Thread cuts real or cosmetic threads; Coil builds springs and helixes.

Don't sketch circles for fastener holes — the wizard knows the standards.

Hole tool

Place centres first: a sketch of points on the target face (Reference geometry (planes, axes, points)) — or just pick the face and position one hole.
Choose the type: simple drilled, counterbore (socket-head cap screws sit flush) or countersink (flat-head screws).
Pick a standard and size — ISO, DIN, JIS or ANSI tables fill the diameters for you (e.g. an M5 counterbore gets the right pilot, bore and depth).
End condition: a set depth, Through All, or up-to a face — same rules as an extrude cut.

One wizard feature drives all the centres in its sketch — edit the size once, every hole updates. Patterning works too (Patterns & Mirror).

Cosmetic thread — the manufacturing-standard choice: a lightweight callout marks the thread; drawings annotate it; geometry stays simple and fast.
Real thread — cuts the actual V-groove helix (3D printing, renders, sims). Heavier to rebuild; use it only where the geometry matters.
Tapered variants cover pipe-style threads.

A helix from radius + pitch + turns — springs, worms, stirring paddles. Combine with a swept profile for round-wire springs (Sweep).

The hole misses the body — the centre sketch isn't on (or projected onto) the target face.
Real thread is slow on many holes — switch all but the critical ones to cosmetic.