ITEM NAME:1X(3/8 Inch & 5/16 Inch Remover Sheetmetal Drill Bit Sawtoot Point Drill DoV4Y4) 1X(3/8 Inch & 5/16 Inch Remover Sheetmetal Drill Bit Sawtoot Point Drill DoV4Y4) 1X(Cast iron and other difficult to process metal materials. With cost-effective and practical. Provides better panel separations than a panel cutter. High strength and hardness.Durable in use. Use:iron,cast iron,alloy steel,carbon steel,die steel. Color:silver,black Material:6542 steel Package Contents: 2pcs x Rotary Spot Drill)