Features Double-Edged Cutting Design: Experience superior performance with enhanced concentricity, ensuring clean and precise cuts every time Versatile Material Compatibility: Perfectly suited for Acrylic, MDF, PVC, and more, this tool excels in 3D engraving and chamfering tasks Create Stunning Decorative Grooves: Easily cut decorative "V" grooves and lettering on signs; pair with an edge guide for perfect bevel edges Safe Engraving Tool: Designed exclusively for engraving applications, providing a reliable and non-hazardous solution for woodworking projects Multiple Size Options Available: Choose Features: 1、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 2、Mortise and tenon square hole drilled by the terrible + outer sleeve in the middle of the combination 3、Reduce labor intensity of construction workers, speed up the construction speed, reduce construction costs for construction, installation, renovation,decoration industries 4、Exquisite blade grinding proc, edge is sharper and more 5、The standard flute is designed to facilitate the removal of the wood chip and improve the efficiency of drilling Specification: Descriptions: This 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.The standard flute is designed to facilitate the removal of the wood chip and improve the efficiency of drilling. Exquisite blade grinding proc, edge is sharper and more . Features: 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. Mortise and tenon square hole drilled by the terrible + outer sleeve in the middle of the combination. Reduce labor intensity of construction workers, speed up the construction speed, reduce construction costs for construction, installation, renovation,decoration industries. Exquisite blade grinding proc, edge is sharper and more . The standard flute is designed to facilitate the removal of the wood chip and improve the efficiency of drilling. Square hole drill is mainly used for woodworking aspects. Specification: Material: high speed steel Color: as picture shows Size(Optional): 10mm/16mm Length: 20m(10mm diameter); 208mm(16mm diameter) Weight:166g Package included: 1 x Square hole drill Package List