HSS Cobalt Drill Bit Set 9/64X6 Aircraft Extension Long Deep Hole Drill-50Pcs
Drill Bits Size: 1/8″ (Diameter) x 1-5/8″ (Flute Length) x 6 (Overall Length)? Quantity/Package: 50 Pcs in a Package. Material: HSS Cobalt High Speed Steel is the best material for improving performance and drilling life when drilling and cutting harder matels, such as stainless steel and other metals. Surface Treatment: The Gold Oxide surface treatment strongthen the hardness of surface by oxiding treatment on the cobalt steel, to ensure the long drilling life and better drilling performance. Unique Function: This drill bit is extra long for long deep hole drilling in steel, metal, iron.. Split Point:No center punch is needed– the aggrevsive 135 Deg. Split Point quick-cut points are self-centering and penetrate quickly with less pressure.