Features: Bimetallic drilling rig, high precisions, long-lasting without damage, high wear resistanceWidely applicable, can be used for opening holes in materials such as solid wood panels, gypsum boards, density boards, thin iron sheets, color steel tiles, etcAccurate positioning, quick drillingScope of application: Mainly suitable for benches drills, handheld drills, rechargeable drills, etcAnti slip triangular handle design, suitable for safe and more reassuring useSpecifications: Material:Carbon SteelDiameter:220mm/8.66',250mm/9.84'Package Includes: 1Piece Hole sawnote: Please allow 1mm errors due to manual measurement.Due to the differences between different monitors, the picture may not reflect the actual color of the item.