10/12.7mm HSS Square Hole Drill Bits Woodworking Drill Tools Kit Set Square Auger Mortising Chisel Drill Set 56HRC

Welcome to OKKey Offical Shop🚚Fast Delivery🎁Well-packaged👊Quality Assurance💯Worry-free Return👉Product Info●Size: 10mm, 12.7mm ●Material: high-speed steel●Package: 1x square hole drill👉Shopping Guide●High Quality: Made of high-speed steel,Heat treatment, HRC48~50, high hardness,lengthened core,high concentricity.●Cost-Effective: Reduce labor intensity of construction workers, speed up the construction speed, reduce construction costs for construction, installation, renovation, decoration industries.●Fit Machine: Great for drilling square holes in wood with a mortising machine or a mortising attachment. Fits all mortising machines and drill press attachments. 👉Friendly Tips●Color may little vary due to different display setting. ●There can be 1-2cm differences by manual measurement.