Cleveland Golf
Cleveland Golf Jobber Drill 1/2" Parabolic Cobalt TiAlN 135° 2075TA
A 1/2 inch cobalt jobber drill with a 135 degree notch point, parabolic flutes and TiAlN coating for hard materials
- TypeAngle, Pitch & Slope Locators
- 1/2 inch cobalt drill bit for high-performance drilling
- 135 degree notch point reduces walking on hard metals
- Parabolic flutes improve chip evacuation in deep holes
- TiAlN coating extends tool life in abrasive alloys
- Suitable for stainless steel, tool steel and chilled cast iron
Cleveland Golf Jobber Drill 1/2" Cobalt TiAlN
This Cleveland Golf jobber drill is a high-performance cutting tool built from cobalt steel with a TiAlN coating. It features a 135-degree notch point and parabolic flutes for efficient chip evacuation. The fractional size is 1/2 inch with a decimal equivalent of .5000. It measures 6 inches overall with a flute length of 4-1/2 inches and a matching 1/2-inch shank diameter.
Suited for tough alloy and stainless steels.
This drill bit targets machinists working with chilled cast iron, high-speed steel, high-strength alloy steel, stainless steel and tool steels. The right-hand cutting direction and non-coolant-through design fit conventional drilling setups. Buyers needing a coolant-fed tool or a different point angle for softer materials should look at other options.
135-degree notch point with parabolic flute geometry
The 135-degree notch point combines with parabolic flutes to reduce thrust and improve chip flow in deep holes. Cobalt steel construction and TiAlN finish resist heat and wear when drilling the listed hard metals. List number 2075TA identifies this specific configuration for reordering.
Highlights
- 1/2 inch cobalt drill bit for high-performance drilling
- 135 degree notch point reduces walking on hard metals
- Parabolic flutes improve chip evacuation in deep holes
- TiAlN coating extends tool life in abrasive alloys
- Suitable for stainless steel, tool steel and chilled cast iron
Specifications
| Brand | Cleveland |
|---|---|
| Type | Angle, Pitch & Slope Locators |
Questions about this item
How do I install the 1/2 inch cobalt drill bit with 135 degree point in my drill press?
Insert the 1/2 inch shank fully into the chuck, tighten securely on the flats, set low RPM for the 135 degree notch point, and apply steady pressure without forcing the parabolic flutes.
When will the TiAlN coating on this 2075TA jobber drill need replacement?
The TiAlN finish wears gradually; replace the bit when the 135 degree notch point no longer self-centers or when drilling 0.5000 inch holes shows excessive heat or rough finish.
What limit appears first when drilling stainless steel continuously with this cobalt bit?
Heat buildup at the 135 degree point softens the cobalt steel first, causing the notch point to dull and the parabolic flutes to clog before the TiAlN coating fails.
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