Cobalt Drill Bits for Hardened Steel

HSS Cobalt Drill Bit for Metal

HSS cobalt drill bits are especially for drilling in hard and abrasive materials with higher red hardness
1) Amber color finished and surface treatment for lasting -longer life an better performance in drilling
2) Best design of helix flute to enable the fast removal of debuts and chips, Fully Ground flute ensure quick drilling
3) Straight round shank to ensure better chucking
4) 135-degree split point ensures best self-centering and positioning, without pre-drilling

Factory

135 degree split point design
Start easily without a center punch
Less downward force needed with thinner web than 118 degree drills
Less drill bit tip wander

HSS Cobalt Drill Bits Set M35 Co5% HSS Co Jobber Length Twist Drill Bit 135 Deg. Split Point HSS Drill Bit for Stainless Steel, Metal, Copper, Iron, Cast Iron, Aluminum.
1) PREMIUM MATERIAL: High-Grade High-Speed Steel with Cobalt 5% to ensure the high hardness over HRC 64-66, and wear-resistance, abrasion-resistance, high red hardness.
2) BEST CUTTING TIP:135 Deg. Split Point Drill Angle to guarantee the best self-centering and positioning and drill smooth and quicker than a normal point angle.
3) FLUTE FIGURES: Efficient Helix Flute Design to keep the quickest removal of chips and debris through flute during penetration of workpiece.
4) SURFACE TREATMENT:Ember finished nitrided to enable the high hardness of surface and wear-resistance to keep long tooling life.
5) APPLICATION: Applicable for a variety of material drilling, such as stainless steel, steel, metal, iron, cast iron, copper alloy, aluminum, plastic…

M35 HSS COBALT DRILL BITS CO5% JOBBER LENGTH TWIST DRILL BITS GENERAL PURPOSE DRILL FOR STAINLESS STEEL, METAL, IRON, CAST IRON, COPPER, ALUMINUM…
Applicable for a variety of material drilling, such as stainless steel, steel, metal, iron, cast iron, copper alloy, aluminum, plastic…

 

 

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