Drill America
Drill America 33/64in HSS Reduced Shank Drill Bit 3/8in Shank pneumatic accessory
A 33/64 inch HSS reduced shank drill bit with a 3/8 inch shank for drilling 0.5156 inch holes
- TypeDrill Accessories
- 33/64 inch hole capacity backed by high-speed steel construction
- Reduced 3/8 inch shank fits smaller chucks for wider tool compatibility
- Surface-treated flutes improve chip evacuation during drilling
- Decimal size .5156 ensures precise fractional measurement for accurate work
33/64 inch HSS reduced-shank drill bit
This 33/64 inch high-speed steel drill bit features a reduced 3/8 inch shank that fits standard three-jaw chucks. The silver and deming design suits metalworking tasks where a larger hole is needed but chuck capacity is limited. Surface-treated flutes improve chip evacuation and reduce friction during drilling operations. It is intended for machinists and maintenance technicians who need a single large-diameter bit for occasional use.
Sustained-load behaviour
Under continuous drilling the high-speed steel body resists softening better than carbon steel, while the surface-treated flutes help maintain cutting efficiency as temperatures rise. The reduced shank concentrates torque at the junction, so feed pressure must be managed to avoid snapping the bit in deep holes. Coolant or cutting oil is recommended for prolonged cuts in tough alloys to preserve edge life and dimensional accuracy.
Highlights
- 33/64 inch hole capacity backed by high-speed steel construction
- Reduced 3/8 inch shank fits smaller chucks for wider tool compatibility
- Surface-treated flutes improve chip evacuation during drilling
- Decimal size .5156 ensures precise fractional measurement for accurate work
Specifications
| Brand | Drill America |
|---|---|
| Type | Drill Accessories |
Questions about this item
Does the 33/64 inch HSS bit generate excessive heat during extended drilling sessions?
The high-speed steel construction with surface-treated flutes helps dissipate heat effectively during prolonged use in metal or wood.
What shank size must my drill chuck accept to use this 3/8 inch reduced-shank bit?
Your drill chuck must accommodate a 3/8 inch shank, which is standard on most 1/2 inch capacity drills.
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