1Pc 6-16mm HSS Square Hole Drill Woodworking Drill Tools Auger Mortising Chisel Drill DIY Furniture Square Woodworking Drill

Features:1. This Mortising Chisel is great for drilling square holes in wood with a mortising machine or a mortising attachment. 2. Square hole drill can not be used on an electric drill, drill square holes need to fit a square hole drill drilling (mortise and tenon machine) to use.3. Mortise and tenon square hole drilled by the terrible + outer sleeve in the middle of the combination.4. Reduce labor intensity of construction workers, speed up the construction speed, reduce construction costs for construction, installation, renovation, decoration industries.Specification:Material:High-speed steelSize: 6mm, 10mm, 12mm, 12.5mm, 14mm, 15mm6.4mm(1/4), 8mm(5/16), 9.5mm(3/8), 11mm(7/16), 12.7mm(1/2), 16mm(5/8)Length:210mmClamping shank diameter :19mm (Round)Package included: 1 x Square Hole Drill BitUse matters:1. To machining square hole, must drill the hole or cutting machine processed crude hole, then chisel made from artificial hand.2. The utility model in the hole drilled by the rotary body, while the impact of the use of hammer impact force transmitted to the outer body, the material crushing round hole and square head wall, a one-time processing of a square hole, and the dust can be broken slag discharged from the tube.Note:1. Due To The Light And Screen Difference, The Item's Color May Be Slightly Different From The Pictures.2. Please Allow Error Of A Few Centimeters Differences Due To Manual Measurement.