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Cleveland Golf 1/8 inch HSS drill bit 12 inches long bright finish split point 135 degree angle

Cleveland Golf

Cleveland Golf C13180 1/8 in 12 in HSS drill bit

SKU CH-TB2J-A5VNY MPN C13180

A 12-inch HSS aircraft extension drill with a 135-degree split point for precision drilling

  • TypeDrill Accessories
  • MaterialHigh speed steel
  • Extra-long reach with 12 in overall length
  • Precise 135-degree split point starts holes cleanly
  • High-speed steel construction resists heat and wear
  • Aircraft-style extension design for deep access
  • Bright uncoated finish suited for general-purpose drilling

Extra-long HSS drill bit

The Cleveland C13180 is a high-speed steel drill bit designed for deep-hole drilling tasks. Its 12-inch overall length and 1/8-inch diameter suit maintenance and fabrication work requiring extended reach. The bright, uncoated finish is standard for general-purpose machining in steel and other ferrous materials.

Split-point geometry reduces thrust

A 135-degree split point centres the bit quickly and lowers the force needed to start the cut. The 21 to 34-degree helix angle supports steady chip evacuation during deep passes. High-speed steel construction maintains hardness at the temperatures generated in typical drilling cycles.

Maximum drilling depth 1/2 inch

Despite the long flute, the effective drilling depth is limited to 1/2 inch or roughly four times the diameter. Buyers needing to bore deeper holes in a single pass should select a different tool. This bit is intended for pilot holes, sheet metal and shallow drilling in accessible locations.

Highlights

  • Extra-long reach with 12 in overall length
  • Precise 135-degree split point starts holes cleanly
  • High-speed steel construction resists heat and wear
  • Aircraft-style extension design for deep access
  • Bright uncoated finish suited for general-purpose drilling

Specifications

BrandCleveland
ModelC13180
TypeDrill Accessories
MaterialHigh speed steel

Questions about this item

How do I install the C13180 12-inch HSS drill bit and what step is often missed?

Chuck the 1/8 in shank fully into the drill, then set the split point at 135 degrees on the workpiece before starting; the step many skip is clearing chips every 1/2 in of depth to prevent binding.

What maintenance or replacement will the C13180 bit need later?

The high speed steel cutting edges dull with use; resharpen the 135-degree split point to the original 21 to 34 degree relief angles or replace the bit when it no longer cuts cleanly at 4xD depth.

What limit appears first on the C13180 during sustained drilling?

Heat buildup in the uncoated HSS body limits continuous cutting; the bright finish offers no thermal barrier so the bit loses hardness fastest when drilling deeper than 1/2 in without cooling pauses.

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