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HSS Cobalt Drill Bit Aircraft Extension Extra Long Drill Bits M35 Cobalt Long Drill for Deep Hole Drilling ?Specifications: ● Product Name: HSS Cobalt Drill Bit Aircraft Extension Long Drill Bit ● Overall Length: 6 Inch Length ● Cutting Point Angle: 135 Deg. ● Angle Point Type: Split Point ● Flute Type: Spiral Twist Flute ● Shank Type: Straight Round Shank ● Surface Treatment: Golden Ember Finished ● Specification Met: ANSI ● Application: Drill Deep Hole in Steel Metal Iron Copper Aluminum Cast Iron Alloy Steel ● Packaging: Premium Plastic Box with lable
✔️【COBALT DRILL BIT DIMENSION】:9/64"(Diameter) x 1-3/4"( Flute Length) x 6"(Overall Length)
✔️【 COBALT MATERIAL: HSS(M35)】 Cobalt Steel is the premium material with high hardness and red hardness to enable long drilling life and fast drilling performance.
✔️【SURFACE TREATMENT】: The Gold Oxide Ember finished surface treatment strongthen the hardness of drill bit body to ensure the long drilling life and better drilling performance.
✔️【 SPLIT POINT ANGLE 135 DEG】.: No center punch is needed- the aggrevsive 135 deg. Split Point quick-cutting points are self- centering and penetrate quickly with less pressure. will not "walk" or"wander".
✔️【APPLICATION】: Best used for drilling deep hole in metal, high-carbon steel, aluminum and alloy steel, cast iron, stainless steel and titanium
