SaferCCTV 3/4" Mortising Chisel Bit Woodworking Square Hole Drill Bits Woodworker Power Tools for Construction Installation Renovation Decoration Industry
Special Features
1. Hollow chisel mortise drill tool suitable for construction, installation, renovation, decoration industry, etc.
2. Professional wood drill bit, clamping shank diameter: 19mm (Round)
3. Special steel, heat treatment, HRC48~50, high hardness, lengthened core, high concentricity.
4. Square wood drill chisel will get double effect by matched use with mortise and tenon machine.
5. The square hole punching needs to use electric drill, hammer & other tools,please note: Do not use this with a regular hand drill.
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