The standardized hexagonal shank ensures universals drill compatibility , while the adjustable hole distance connector optimizes stability during high torqued operations Ideal for carpenters , renovations contractors , and DIYer enthusiasts requiring great hole cutting solution for cabinetry , fixture installations , or machinery maintenance Craft from 45 # alloy steel , its anti coating withstands repeated use across abrasive materials , maintaining sharpness through demanding projects Perfectly adapts to wall mounted shelf installations , workshop furniture assembly , and industrial grade pipe modifications with minimal post cut finishing Engineered with a quick releases hexagonal handle and hard teeth , this hole mandrel delivers rapid tool changes and precise drilling in wood , PVC for professional efficiency, Manufacturer: BULAIDAI