China Wood Square Hole Mortise Chisel Drill Bit for Wood Square Hole Drilling, Find details about China Wood Square Hole Drill Bit, Mortising Chisel from Wood Square Hole Mortise Chisel Drill Bit for Wood Square Hole Drilling
Material: high-speed steel
Hardness: HRC 48-50
Size: 1/4" (6.35mm), 5/16" (7.94mm), 3/8" (9.5mm), 1/2" (12.7mm) 5/8"(15.9mm)
Clamping shank diameter: 19mm (Round)
Length: 210mm
Package Included: 1 x Square Hole Drill Bit