CSPARKV 20mm Square Hole Mortise Chisel Drill Bit, Bearing Steel Woodworking Square Hole Drill Bits Cutter

【Design】 The drill sleeve design, the force at the edge of the drill sleeve is on a plane, which effectively protects and prevents cracking when starting to use. 20mm universal handle shape, the end of the drill bit is round, so that the clamping is more stable.

【Application】 Square hole drill bits are widely used in MDF, MDF, particle board, wood and other wood products, and are suitable for square hole drilling machines and square tenon machines.

【Easy to use】 Use with a mortising machine and a mortising machine to achieve a double effect. Drilling square holes requires the use of electric drills, hammers or other tools.

【Bearing steel】: The woodworking square drill bit is forged from bearing steel and is heat treated. It has a high-hardness drill bit and a sharp square chisel, and has a long service life.

【Convenient chip removal】The hole opener is designed with a long U-shaped flute to facilitate the discharge of wood chips and improve drilling efficiency.