Drill America
Drill America 1-3/8in 1/2in Reduced Shank Cobalt Silver and Deming Drill Bit pneumatic accessory
Cobalt steel drill bit with reduced 1/2 inch shank fits larger chucks for 1.3750 inch holes
- TypeDrill Accessories
- Cobalt steel resists heat during heavy drilling
- Bronze oxide finish reduces friction and wear
- Reduced 1/2in shank fits standard chucks
- Decimal size 1.3750 ensures precise hole diameter
1-3/8" Cobalt Silver and Deming Drill Bit
This Drill America bit is a 1-3/8 inch cobalt steel drill accessory with a reduced 1/2 inch shank designed for use in pneumatic or power drill chucks. The bronze oxide surface treatment on the flutes helps resist wear during heavy-duty metal drilling tasks. It suits maintenance technicians and fabricators who need a single large-diameter bit compatible with standard 1/2 inch capacity chucks. The decimal equivalent is 1.3750 inches.
Reduced shank fits standard half-inch chucks
The reduced shank allows this large-diameter bit to be secured in any 1/2 inch drill chuck without requiring a specialised large-capacity holder. Its 3 inch flute length and 6 inch overall length provide deep-hole reach while the cobalt steel construction maintains hardness at elevated temperatures. Builders needing multiple hole sizes or a quick-change system will need additional bits or a different chucking solution.
Highlights
- Cobalt steel resists heat during heavy drilling
- Bronze oxide finish reduces friction and wear
- Reduced 1/2in shank fits standard chucks
- Decimal size 1.3750 ensures precise hole diameter
Specifications
| Brand | Drill America |
|---|---|
| Type | Drill Accessories |
Questions about this item
What is the flute length on this 1-3/8 inch cobalt drill bit?
The flute length is 3 inches, giving plenty of chip clearance for deep holes in tough metals.
How much heat does the bronze oxide coating help manage during all-day drilling?
The bronze oxide finish reduces friction and heat buildup, keeping the cobalt steel cooler during extended use in steel and stainless.
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