Cleveland Golf
Cleveland Golf #17 Parabolic Jobber Drill Cobalt 135°
A parabolic-flute cobalt jobber drill sized #17 with a 135-degree notched point for stainless and high-strength alloy steels
- Parabolic flute geometry improves chip evacuation and coolant flow
- 135° notched point reduces work hardening and increases drilling stability
- Cobalt steel construction handles stainless steel and high-strength alloys
- #17 wire size with 0.1730 inch decimal equivalent for precise holes
- TiAlN coating resists oxidation and extends drill life at high temperatures
Cleveland Golf #17 Cobalt Drill
This Cleveland Golf #17 jobber drill is made from cobalt steel with a 135-degree parabolic flute and notched point. It targets machinists and maintenance technicians who need a single high-performance bit for drilling tough alloys. The straw finish and TiAlN coating resist oxidation during high-temperature cutting. One piece is supplied under list number 2075.
Sustained drilling in hard materials
The parabolic flute form and wider flute spacing improve coolant flow and chip evacuation during extended cuts in chilled cast iron, high-speed steel, high-strength alloy steel, stainless steel and tool steels. The modified notch point increases stability and reduces work hardening so the bit stays accurate through deep holes. TiAlN coating further extends life where heat builds up over long cycles.
Replaces standard high-speed steel bits
This drill upgrades from conventional HSS jobbers when hole tolerance, chip control and tool life in difficult steels become critical. The jump is worth it for repeated operations in the listed alloys where ordinary bits dull or pack chips quickly. Buyers who need a full set of sizes or a different point geometry for softer materials should look elsewhere.
Highlights
- Parabolic flute geometry improves chip evacuation and coolant flow
- 135° notched point reduces work hardening and increases drilling stability
- Cobalt steel construction handles stainless steel and high-strength alloys
- #17 wire size with 0.1730 inch decimal equivalent for precise holes
- TiAlN coating resists oxidation and extends drill life at high temperatures
Specifications
| Brand | Cleveland |
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Questions about this item
How much heat does the #17 cobalt drill generate when drilling stainless steel all day?
The 135° parabolic flute and TiAlN coating improve coolant flow and resist oxidation, reducing heat buildup during extended drilling in stainless steel and high-strength alloys.
What shank size must my drill chuck accept to hold this #17 jobber drill?
The drill has a 0.1730-inch shank diameter, so your chuck must accommodate at least that size for a secure grip.
Will the 135° notched point stay stable in the chilled cast iron parts I already machine?
Yes, the modified notch point is designed to increase stability and lessen work hardening in chilled cast iron and tool steels.
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