Drill America
Drill America 1/2in Cobalt Reduced Shank Drill Bit x 3/8 Shank pneumatic accessory
A 1/2-inch cobalt drill bit with a reduced 3/8-inch shank and bronze oxide finish for heavy-duty drilling
- TypeDrill Accessories
- Cobalt steel resists heat during heavy drilling
- Reduced 3/8 shank fits smaller chucks securely
- Bronze oxide coating lowers friction and wear
- Surface-treated flutes clear chips for smoother cuts
1/2 inch cobalt reduced-shank drill bit
This Drill America accessory fits pneumatic and power tools that accept a 3/8 inch shank. The cobalt steel construction resists heat during metal drilling. A bronze oxide coating reduces friction and protects the cutting edges. The reduced shank allows the 1/2 inch bit to be used in smaller chucks.
Sustained-load behaviour
Surface-treated flutes clear chips efficiently so the bit runs cooler during extended drilling sessions. Cobalt steel maintains hardness at elevated temperatures, reducing the risk of edge softening under continuous load. The 5000 decimal equivalent ensures precise hole sizing throughout long production runs. Flute length of 4-1/2 inches supports deep-hole work without frequent withdrawal.
Highlights
- Cobalt steel resists heat during heavy drilling
- Reduced 3/8 shank fits smaller chucks securely
- Bronze oxide coating lowers friction and wear
- Surface-treated flutes clear chips for smoother cuts
Specifications
| Brand | Drill America |
|---|---|
| Type | Drill Accessories |
Questions about this item
Does the cobalt steel and oxide coating keep the bit cool during all-day drilling?
The cobalt steel construction and bronze oxide surface treatment help dissipate heat and reduce friction, keeping the bit cooler during extended use compared to standard high-speed steel.
What chuck size is required to hold the 3/8" reduced shank on this 1/2" bit?
The reduced 3/8" shank fits any standard drill chuck that accepts 3/8" or larger, so a common 3/8" or 1/2" keyed or keyless chuck will hold it securely.
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