Description: 【Product Specifications】: This M42 bimetal woodworking hole drill bit is specially designed for drilling holes in gypsum board, PVC, and iron plate downlights. The handle is made of solid material and is classified as a hole reamer. 【Material & Compatibility】: This Hole Drill Bit is made of M42 bi metal material for durability performance. It is applicable to handheld drills and bench lathes. 【Wide range of uses】: Woodworking Drill Bit is very suitable for drilling wood boards, aluminum alloys, iron boards, gypsum boards, plastics, PVC plastic pipe, with sharp impact resistance, center positioning, punching, and multi hole chip removal. 【Design Features】: Hole Drill Bit Cutter adopts high speed steel center drill bit and front and rear inclination angle design to achieve efficient drilling performance. It also features a new flute design as well as a triangular handle type for better grip. 【Use】: Drill Cutter Woodworking Tool ensures smooth operation during the drilling process and makes the operation more stable. Specification: Note: Do not use impact drills or electric hammers with this product; be sure to confirm installation is complete before use to ensure . Size Chart:diameter 1.6cm/0.63inch length 8.3cm/3.27inch Package Includes: 10 Hole Drill Bit Note: Please allow slightly errors 1-2cm differences due to manual measurement.