Cleveland Golf
Cleveland Golf 5/32 Jobber Drill Parabolic TiAlN 135 Deg
Cobalt steel jobber drill with 135° notch point and TiAlN coating for hard materials
- TypeAngle, Pitch & Slope Locators
- Parabolic flute clears chips efficiently in deep holes
- TiAlN coating resists heat when drilling hardened steels
- 135-degree notch point starts accurately without wandering
- Cobalt steel construction withstands high-speed drilling in tough alloys
- 5/32-inch fractional size matches standard jobber drill specifications
5/32 Inch Cobalt Drill Bit
The Cleveland Golf jobber drill bit is a fractional inch cutting tool sized at 5/32 inch with a decimal equivalent of .1562. It is built from cobalt steel with a TiAlN coating for high-performance drilling. The 135 degree notch point and parabolic flute design aid chip evacuation in deep holes. This right-hand cutting bit suits maintenance and production environments.
Upgrade From Standard High-Speed Steel Bits
The TiAlN coating and cobalt substrate extend tool life when drilling chilled cast iron, high-strength alloy steel, stainless steel and tool steels. The parabolic flute geometry improves chip removal compared to conventional flute designs, reducing the risk of clogging in deeper cuts. The 135 degree point angle lowers thrust requirements for harder materials. The jump is worth it when standard bits wear quickly or fail to evacuate chips in these specific alloys.
Check Material Compatibility And Machine Setup
Verify the workpiece material matches the listed alloys: chilled cast iron, high speed steel, high-strength alloy steel, stainless steel and tool steels. Ensure the machine spindle runs right-hand rotation and can accommodate a 3-1/8 inch overall length with a 2 inch flute length. Confirm the shank diameter matches the chuck or collet capacity. Coolant-through capability is not required for this non-coolant-through design.
Highlights
- Parabolic flute clears chips efficiently in deep holes
- TiAlN coating resists heat when drilling hardened steels
- 135-degree notch point starts accurately without wandering
- Cobalt steel construction withstands high-speed drilling in tough alloys
- 5/32-inch fractional size matches standard jobber drill specifications
Specifications
| Brand | Cleveland |
|---|---|
| Type | Angle, Pitch & Slope Locators |
Questions about this item
What size drill chuck or collet fits the 5/32 inch shank?
The shank diameter is 5/32 inch, so use a chuck or collet that accepts that exact fractional size.
How do I start the hole correctly with the 135 degree notch point?
Apply steady pressure on centre; the 135 degree notch point self-centres without a pilot hole, but avoid side loading during entry.
When should the TiAlN coating be considered worn and the bit replaced?
Replace the bit when the gold TiAlN layer has worn through to the cobalt steel substrate or when cutting edges show visible rounding.
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