Cleveland Golf 9/32 Parabolic TiAlN 135° Drill Bit

What this drill bit does

The Cleveland Golf 9/32 Parabolic TiAlN 135° Drill Bit is a jobber-length cutting tool made from cobalt steel with a TiAlN finish. It is built for high-performance drilling in metal where heat resistance and chip evacuation matter. The 135-degree notch point reduces walking at the start of the cut. This bit suits machinists and maintenance crews who need reliable fractional-inch holes.

Check your setup before ordering

Verify that your drill chuck accepts a 9/32 inch straight shank and that your machine can run right-hand cutting tools. The overall length is 4-1/4 inches with a flute length of 2-15/16 inches, so confirm the spindle travel and workpiece clearance suit those dimensions. This bit is non-coolant-through, so external lubrication or air blast must be available if the material demands it. The fractional size .2812 inch decimal equivalent must match the hole specification exactly.

What the parabolic flute and coating change

The parabolic flute geometry moves chips away from the cutting zone faster than standard flutes, which helps prevent binding in deeper holes. The TiAlN coating adds surface hardness and heat resistance, letting the cobalt steel substrate hold its edge longer in abrasive or high-temperature alloys. Together they extend tool life and reduce the frequency of bit changes on production runs. List number 2075TA identifies this specific configuration for reordering.