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SaferCCTV Square Hole Drill Bit, Steel Hardness Sharp Durable Mortising Chisel Set Woodworking Mortiser Drill
Sharp -These square hole drill bits made of bearing steel, hardness 56HRC, lengthened core, sharp cutting edge, continuous blade, quick cuttings, high efficiency. Note If for drill press to use, must have a mortising attachment (Not Included). Easy to use Our woodworking morstising chisel bits set Only use for the opening square hole and keyhole drill -- 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. Very cost-effective -- Mortise and tenon square hole drilled by SaferCCTV

Price is $80.00

Price: $79.99