CLEVELAND Jobber Length Drill Bit: Letter R, 135° Split Point, Straw/Bronze Cobalt

The CLEVELAND C15666 is a cobalt jobber-length drill bit designed for deep hole-drilling in hard materials. Its 135° split point reduces walking and thrust, while the fast spiral efficiently evacuates chips. It is commonly used in metalworking, automotive, and aerospace manufacturing for precision drilling in stainless steel and high-temperature alloys.

The CLEVELAND C15666 is a jobber-length drill bit with a letter R size, corresponding to a diameter of 0.3390 inches. It features a 135° split point, straw/bronze cobalt finish, and a fast spiral flute design. The cobalt steel construction provides heat resistance and durability for drilling tough materials.

You can source the CLEVELAND C15666 drill bit through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations. Contact us for availability and lead times; we supply genuine CLEVELAND tooling for industrial applications.

Select a CLEVELAND jobber drill bit like the C15666 based on material hardness and hole depth. For deep holes, choose a fast spiral design for chip evacuation and a 135° split point to reduce walking. Cobalt steel bits are ideal for stainless steel and high-temperature alloys. Ensure the diameter matches your required hole size, such as 0.3390 inches for letter R.