ITEM NAME:High-carbon Steel FORSTNER DRILL BIT for DRILLING WOOD PLASTIC PLYWOOD Description: Safe & accurate woodworking tool. Selection of high-carbon steel, it is hardened and tempered. It's head adopt arc curve design, beneficial to chip removal, perforation is more efficient. Can be used for wood products perforation, mounted spherical door shoot tip, drawer, plastic products, wood, plywood, etc. Precision ground for heavy use and easily resharpened, they can enlarge existing holes with ease and can bore any arc of a circle. Specification: Material: High-carbon steel Total Length: Approx. 125mm/ 4.92'' Hole Size: Approx. 18mm/ 0.71'' Package Includes: 1 Piece Forstner Drill Bit.1 Piece Forstner Drill Bit. Can be used for wood products perforation, mounted spherical door shoot tip, drawer, plastic products, wood, plywood, etc. Precision ground for heavy use and easily resharpened, they can enlarge existing holes with ease and can bore any arc of a circle.