Additional information
| Size | 1/16”, 5/64”, 3/32”, 7/64”, 1/8”, 9/64”, 5/32”, 11/64”, 3/16”, 13/64”, 7/32”, 15/64”, 1/4”, 17/64”, 9/32”, 19/64”, 5/16”, 21/64”, 11/32”, 23/64”, 3/8”, 25/64”, 13/32”, 27/64”, 7/16”, 29/64”, 15/32”, 31/64”, 1/2” |
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BORDO Cobalt HSS-Co5 Jobber Drill Fractional
- Bordo Fractional Cobalt Tough HSS-Co5 Twist Drills.
- ANSI B94-11
- 135° Split Point (crankshaft point).
- Split point is self centering and the short distance from the drill axis to the outer corners results in faster penetration, reducing the need for end thrust.
- The 135° point should be used to cut harder steel materials especially in deep hole applications.
- In these situations it will produce thicker chips minimising work hardening of the cavity.
- Faster penetration reduces abrasion and friction along the cutting edges.
- Cobalt HSS Twist drills are extremely hard and provide superior performance and increased tool life especially in stainless steel and high tensile steel.
- Bronze Finish (gold oxide) surface treatment. The metallic brown coloured low temperature temper treatment is normally only used on cobalt tools for identification purposes.
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- Wide flutes provide rapid chip evacuation with a heavy duty worm point that resists breakage.
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- Heavy duty milled flute design.
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- Four cutting surfaces – up to 10 times faster than standard spade bits.
- 1/4″ hex shank suits Power-Hex® quick change adaptors and standard chucks.
- Fully heat treated for increased durability.
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