Union Tool Carbide Drill Coated Drill φ0.25 x Blade Length 3 C-UMD2025-030 1 piece

Catalog number: C-UMD2025-030 Features: ● A precision drill that achieves a long life. ● Longer life than general coated drills. ● Chip pocket shape that efficiently discharges chips. Applications: ● Workpiece: Aluminum alloy, carbon steel, alloy steel, pre-hardened steel, hardened steel (hardness 45HRC or less), cast iron, copper. Specifications: ● Blade diameter (mm): 0.25 ● Groove length (mm): 3 ● Total length (mm): 38 ● Shank diameter (mm): 3 ● Effective machining depth: 4 to 12D (blade diameter x 4 to 12 times) ● Surface treatment: UT micro coating ● Outer diameter (φD): 0.25 ● UT micro coating Material / Finish: ● Ultra-fine particle alloy (Super MG)