Yamawa NC Starting Drill for Chamfering 90° NC-SD V 4X90° NC-SD-V-4 1 piece

Catalog number: NC-SD-V-4 Features: ● Used for chamfering. ● After drilling a hole with a general-purpose drill, you can use a size larger than the hole diameter to achieve a clean chamfered finish. Applications: ● Workpiece: carbon steel, alloy steel, tool steel, cast iron, copper alloy, aluminum alloy. ● Hole chamfering. Specifications: ● Shank diameter (mm): 4 ● Overall length (mm): 55 ● Center hole angle (°): 90 ● Surface treatment: TiN coating ● Blade shape: Single-edged ● Blade shape: Single-edged ● Surface treatment: TiN coating Material/Finish: ● Cobalt high-speed steel (HSS-Co)