Reduce labor intensity of construction workers, speed up the construction speed, reduce construction costs for construction, installation, renovation, decoration industries.;Hollow Mortising Chisel Bits are for making square mortises in one stroke and oblong mortises with each succeeding stroke.

• BQLZR 14mm HSS Mortising Twist Drill Bit Woodworking Tools Chisel Cutter Square Holes Saw
• Silver

BQLZR 14mm HSS Mortising Twist Drill Bit Woodworking Tools Chisel Cutter Square Holes SawBQLZR