12mm Locking Bench Dog for CNC. Two piece with M4 locking screw and encapsulated nut.

2 x printed parts. 1 x Body and 1 x Nut.

Uses M4 x 20mm cap head screw and nut. Nut encapsulated in print.

G-Code files included for PETG and ABS at 0.15mm layer height and 100% infill. You could probably use a larger layer height, but the higher resolution is better for the taper fit for the expanding body as the nut pulls in.