Chicago-Latrobe
Chicago-Latrobe 46621 21/64" Cobalt 135° Jobber Drill Bit
Cobalt jobber drill bit with a 135-degree split point for 21/64 inch holes
- TypeDrill Bits
- MaterialHAWA
- Cobalt steel resists heat for longer edge life
- 135-degree split point starts holes without wandering
- Jobber length fits standard chucks and drill presses
- 21/64-inch diameter matches common fractional sizing
Chicago-Latrobe 46621 Cobalt Jobber Drill Bit
This Chicago-Latrobe 46621 drill bit is a fractional inch jobber length tool made from HAWA cobalt material. It features a 135 degree split point designed for accurate starting and reduced walking. The bit suits metalworking tasks requiring a 21/64 inch diameter hole.
Fits standard drill chucks for portable
The straight shank fits standard drill chucks on corded, cordless, or press-mounted machines. Cobalt construction handles stainless steel and tough alloys that dull high-speed steel quickly. The split point reduces the thrust needed to start the cut. Builders needing coolant-through capability or a different diameter must choose another bit.
Highlights
- Cobalt steel resists heat for longer edge life
- 135-degree split point starts holes without wandering
- Jobber length fits standard chucks and drill presses
- 21/64-inch diameter matches common fractional sizing
Specifications
| Brand | CHICAGO-LATROBE |
|---|---|
| Type | Drill Bits |
| Material | HAWA |
Questions about this item
How does the 135-degree split point behave when the bit heats up during extended drilling?
The 135-degree split point is designed to reduce walking and maintain centering accuracy even as the cobalt material heats during sustained use.
What temperature or noise level should I expect from the 21/64-inch cobalt bit during all-day operation?
The cobalt construction resists heat buildup better than high-speed steel, keeping the bit cooler and quieter during continuous drilling in tough materials.
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