Drill America
Drill America 7/16in Cobalt Reduced Shank Drill Bit 3/8 Shank Pneumatic Accessory
A 7/16 inch cobalt drill bit with a reduced 3/8 inch shank for drilling hard metals
- TypeDrill Accessories
- Cobalt steel construction resists heat for longer tool life
- Reduced 3/8 shank fits smaller chucks on standard drills
- Bronze oxide finish reduces friction during high-speed drilling
- Surface-treated flutes improve chip evacuation in tough materials
7/16 inch Cobalt Drill Bit with Reduced Shank
This cobalt steel drill bit features a 7/16 inch cutting diameter and a reduced 3/8 inch shank for use with smaller chucks. The bronze oxide surface treatment helps reduce friction and resist wear during drilling. It is suited for general-purpose metalworking in a workshop or job site.
Capacity and headroom for metal drilling
The 4-1/16 inch flute length provides sufficient reach for most standard drilling depths in steel and alloy materials. Cobalt construction maintains hardness at higher temperatures compared to standard high-speed steel. The reduced shank limits use to chucks that accept 3/8 inch or larger capacity, so it is not for machines with smaller chuck sizes.
Highlights
- Cobalt steel construction resists heat for longer tool life
- Reduced 3/8 shank fits smaller chucks on standard drills
- Bronze oxide finish reduces friction during high-speed drilling
- Surface-treated flutes improve chip evacuation in tough materials
Specifications
| Brand | Drill America |
|---|---|
| Type | Drill Accessories |
Questions about this item
Will the 3/8 reduced shank fit my older 3/8 chuck drill without an adapter?
Yes, the 3/8 reduced shank is designed to seat directly in a standard 3/8 chuck so you can use the 7/16 cobalt bit with existing tooling.
How do I confirm the cobalt bit is cutting correctly after I install it?
Look for steady bronze oxide chips and a smooth .4375 hole; the surface treated flutes should evacuate material cleanly without blueing or chatter.
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