Cleveland Golf 17/64 Parabolic Drill Bit TiAlN 135 Deg

17/64 Parabolic Drill Bit

The Cleveland Golf 17/64 parabolic drill bit is a fractional-inch cutting tool built from cobalt steel with a TiAlN coating. Its 135-degree notch point and right-hand cutting direction suit general-purpose drilling in metal. The jobber-length body measures 4-1/8 inches overall with a 2-7/8 inch flute length and a matching 17/64 inch shank diameter. Machinists and maintenance technicians use this high-performance bit for accurate holemaking.

Sustained drilling behaviour

The parabolic flute geometry moves chips away from the cut more efficiently than standard flutes, reducing heat buildup during deeper passes. Cobalt steel retains hardness at elevated temperatures, while the TiAlN finish lowers friction and resists wear when the bit runs continuously. Together these features help maintain cutting speed and hole quality over longer cycles without frequent withdrawal.

Upgrade considerations

This bit replaces standard high-speed steel jobber drills when chip evacuation or tool life becomes the limiting factor. The step up is justified for deeper holes in tough alloys or when production volume demands fewer tool changes. It is not intended for coolant-through operations or left-hand cutting applications. Buyers needing through-coolant capability or a different point angle should select another series.