Square hole mortise chisel drill bit set, 6 sizes
A 6-piece HSS wood drill bit set for mortise chisels with sizes from 1/4
Features
- Set includes six square hole mortise chisels with sizes: 1/4", 5/16", 3/8", 1/2", 9/16", 5/8" (6.4mm to 16mm)
- Made from high-speed steel (HSS) with heat treatment for HRC 48–50
- Suitable for mortise and drill accessories and compatible with mortise and tenon machinery
- Designed to reduce labor intensity in construction work while enabling precise mortise work
