Drill America
Drill America 49/64in Reduced Shank Cobalt Silver and Deming Drill Bit
A 49/64 inch cobalt steel drill bit with a 1/2 inch reduced shank for drilling tough metals
- TypeDrill Accessories
- Cobalt steel resists heat and wear
- Reduced 1/2in shank fits standard chucks
- Silver and Deming design handles large holes
- Bronze oxide finish adds corrosion protection
49/64-inch Cobalt Drill Bit with Reduced Shank
This cobalt steel drill bit features a 49/64-inch cutting diameter and a decimal equivalent of .7656. The reduced shank design allows the bit to fit securely in a standard 1/2-inch drill chuck. Bronze oxide surface treatment on the flutes helps resist wear and corrosion during demanding drilling tasks.
Suited for heavy-duty metalwork and maintenance
The cobalt construction provides the hardness needed for drilling tough alloys such as stainless steel. Builders needing a larger shank diameter or a different flute length will need a separate bit, as this model is fixed at its listed overall length and reduced shank specification.
Highlights
- Cobalt steel resists heat and wear
- Reduced 1/2in shank fits standard chucks
- Silver and Deming design handles large holes
- Bronze oxide finish adds corrosion protection
Specifications
| Brand | Drill America |
|---|---|
| Type | Drill Accessories |
Questions about this item
How deep can the 49/64 inch cobalt bit drill before the 3 inch flute length fills with chips?
The flute length is 3 inches, so chip clearance is effective to roughly that depth; beyond it you should withdraw the bit to clear chips.
Does the bronze oxide coating on the cobalt steel reduce heat build-up during prolonged drilling?
The bronze oxide surface treatment on the cobalt steel helps dissipate heat and reduces friction during extended use.
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