Description
HSS Twist Drill Bits Square Auger Mortising Chisel Drill Set Square Hole Woodworking Drill Tools Kit 4Pcs SetDescription: ✔This Mortising Chisel is great for drilling square holes in wood with a mortising machine,mainly used for woodworking aspects ✔Square hole drill can not be used on an electric drill, bench drill, drill square holes need to fit a square hole drill drilling (mortise and tenon machine) to use ✔Finished with fine polishment, these square drill bits come with no burrs to provide a smooth drilling experience ✔Mortise drill bits are suitable for mortising machine or mortising accessories, which can greatly improve the working efficiency of carpenter ✔The chisel drill bits set have excellent heat dissipation, so the bits won’t be burning hot during long-time usingSpecification: Item: 4pcs different size square hole drill bit Application:suitable for construction, installation, renovation, decoration industry, etc Shank type: round straight handle Material: high-speed steel Slotting flute diameter:1/4 Inch (6.4mm), 5/16 Inch (8mm), 3/8 Inch (9.5mm),1/2 Inch (12.7mm)Package Included: 1 x 12.7mm Square Hole Drill Bit 1 x 9.5mm Square Hole Drill Bit 1 x 8mm Square Hole Drill Bit 1 x 6.4mm Square Hole Drill Bit




