4 Piece Square Hole Mortising Woodworking Drill Bit
The tool kit is specially used to make square or rectangular slots on all kinds of timber
Including 4 drill bits of different sizes
Specifications：
Length: 210mm
Specification: 1/4 (6.4mm), 5/16 (8mm), 3/8 (9.5mm), 1/2 (12.7mm)
Maximum depth: 75mm
Each drill bits comes with its own plastic case
Including 4 drill bits of different sizes
Specifications：
Length: 210mm
Specification: 1/4 (6.4mm), 5/16 (8mm), 3/8 (9.5mm), 1/2 (12.7mm)
Maximum depth: 75mm
Each drill bits comes with its own plastic case