Disco
Disco 12996 Drill Bit 21/32" dia. 1/2" Shank pneumatic accessory
Drill bit with a 21/32 inch diameter and a 1/2 inch shank for pneumatic tools
- 21/32" diameter drills large holes cleanly
- 1/2" shank fits standard pneumatic chucks securely
- Model 12996 identifies the exact accessory needed
- New condition delivers full factory performance immediately
- DISCO brand supplies professional-grade pneumatic tooling
Disco 12996 drill bit — 21/32 inch diameter
The Disco 12996 is a pneumatic drill bit built for heavy-duty metalworking where a 21/32 inch hole is required. It fits tools that accept a 1/2 inch shank, making it suitable for industrial maintenance, fabrication and automotive repair shops. The bit is supplied new and ready for immediate use on compatible equipment.
Straight 1/2 inch shank for direct chuck fit
The straight 1/2 inch shank seats securely in standard pneumatic drill chucks without adapters, reducing run-out and speeding up bit changes on the job. Its one-piece construction resists bending under high torque loads typical of large-diameter drilling in steel and cast iron. The simple geometry also allows easy resharpening to extend service life.
Replaces worn or undersized large-diameter bits
This bit replaces dull or damaged 21/32 inch cutters that no longer hold tolerance or produce clean holes. It is not for drills limited to smaller shank capacities or for applications needing a reduced-shank or hex-shank interface. The jump is worth it when hole accuracy and tool rigidity matter more than shank versatility.
Highlights
- 21/32" diameter drills large holes cleanly
- 1/2" shank fits standard pneumatic chucks securely
- Model 12996 identifies the exact accessory needed
- New condition delivers full factory performance immediately
- DISCO brand supplies professional-grade pneumatic tooling
Specifications
| Brand | DISCO |
|---|
Questions about this item
What shank standard does the 21/32" bit use, and what chuck size does that require?
The bit has a 1/2" shank, so it fits any drill or driver with a 1/2" chuck capacity.
What is the overall diameter of the cutting portion, and will it clear a standard 1/2" chuck body?
The cutting diameter is 21/32", which is larger than the 1/2" shank, so the chuck jaws close on the shank only.
How is the bit secured in the chuck, and what step do users often skip?
Insert the 1/2" shank fully into the chuck and tighten all three jaws evenly; the step often missed is fully seating the shank before tightening.
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