Description of JIUWU Woodworker Square Mortising Woodworking
Material: High-speed steel / HSS, heat treatment, HRC48~50, high hardness, lengthened core, high concentricity. Size: 1/4 Inch (6.0mm), 5/16 Inch (8mm), 3/8 Inch (9.5mm), 7/16 Inch (11mm), 1/2 Inch (12.7mm), 5 kinds of sizes can meet your different ordinary need. Great for drilling square holes in wood with a mortising machine or a mortising attachment. Fits all mortising machines and drill press attachments. Square hole drill is mainly used for woodworking aspects. This set of great woodworker tools can reduce labor intensity of construction workers, speed up the construction speed, reduce construction costs. High performance flute design geometry for superior chip extraction.