Chicago-Latrobe
Chicago-Latrobe 46492 135 Degree Cobalt Jobber Drill Bit 11 mm
11 mm cobalt jobber drill bit with a 135-degree split point for hard-metal drilling
- TypeDrill Bits
- MaterialHAWA
- 135-degree split point starts on contact without wandering
- Cobalt HAWA steel resists heat for longer cutting life
- Jobber length reaches deep holes in metal stock
- 11 mm diameter matches metric fastener specifications
- Decimal equivalent .4331 simplifies imperial-to-metric conversion
11 mm Cobalt Jobber Drill Bit
This 11 mm cobalt jobber drill bit is built for drilling hard metals such as stainless steel and high-strength alloys. The 135-degree split point reduces walking and starts holes cleanly without a centre punch. It suits maintenance technicians, fabricators and workshop professionals who need reliable performance in tough materials.
Jobber Length for Standard Chucks
The jobber length fits standard drill chucks and allows reach into typical workpiece depths. Cobalt construction resists heat buildup during extended drilling, so the bit stays sharp longer than high-speed steel alternatives. No coolant-through holes are present, so external lubrication or peck drilling is required for deep holes.
Split Point Geometry Improves Accuracy
The split point design centres the bit on contact, reducing the need for pilot holes and saving setup time. Straw bronze surface finish identifies the cobalt grade and provides some corrosion resistance. Decimal equivalent 0.4331 inch helps when matching imperial specifications or selecting tap drill sizes.
Highlights
- 135-degree split point starts on contact without wandering
- Cobalt HAWA steel resists heat for longer cutting life
- Jobber length reaches deep holes in metal stock
- 11 mm diameter matches metric fastener specifications
- Decimal equivalent .4331 simplifies imperial-to-metric conversion
Specifications
| Brand | CHICAGO-LATROBE |
|---|---|
| Type | Drill Bits |
| Material | HAWA |
Questions about this item
How does the 135-degree split point affect hole accuracy in tough material?
The 135-degree split point centres the bit instantly and reduces wandering, giving cleaner holes in hard metals without a centre punch.
Does the cobalt steel run hot during extended drilling?
Cobalt alloy resists heat build-up better than standard high-speed steel, so the bit stays sharper longer during continuous use.
What shank size fits my 11 mm chuck?
The jobber-length bit has a straight shank matching the 11 mm diameter, so it clamps directly in any standard 11 mm drill chuck.
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