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Silver 12 inch high speed steel extension drill bit with split point tip

Cleveland Golf

Cleveland Golf C13186 Extension Drill 7/32x12 In HSS Pneumatic Accessory

SKU CH-G1TQ-2TTW3 MPN C13186

A 12-inch aircraft extension drill bit made from high speed steel with a 135-degree split point for precision drilling

  • TypeDrill Accessories
  • MaterialHigh speed steel
  • 12-inch reach for deep-hole access
  • 7/32-inch diameter suits precision tasks
  • 135-degree split point starts cleanly
  • High-speed steel resists heat wear
  • Bright finish reduces chip adhesion

Extension Drill 7/32 Inch HSS

The Cleveland C13186 is an aircraft-type extension drill manufactured from high speed steel. Its bright uncoated finish and 135-degree split point design promote accurate starts and efficient chip removal. The 12-inch overall length provides extended reach for deep or obstructed holes.

Suited for deep-hole drilling in metal

This accessory suits machinists and maintenance crews drilling fractional 7/32-inch holes to a maximum depth of 7/8 inch in high-performance materials. The 4xD length-to-diameter ratio limits use to shallow holes relative to the bit diameter, so buyers needing deeper bores should look at something else.

12-inch overall reach

The defining specification is the 12-inch extension length combined with a 7/32-inch cutting diameter. This fixed geometry determines whether the tool can access the specific workpiece features in your application.

Highlights

  • 12-inch reach for deep-hole access
  • 7/32-inch diameter suits precision tasks
  • 135-degree split point starts cleanly
  • High-speed steel resists heat wear
  • Bright finish reduces chip adhesion

Specifications

BrandCleveland
ModelC13186
TypeDrill Accessories
MaterialHigh speed steel

Questions about this item

Will the 135-degree split point on the C13186 drill bit need re-sharpening after repeated use in metal?

The 135-degree split point on this high-speed steel bit can be re-sharpened when it dulls; no coating is present to complicate the process.

What limits continuous drilling depth with the 7/32-inch C13186 extension drill?

The maximum drilling depth is 7/8 inch per pass, and the 12-inch overall length restricts reach in deep holes.

How much heat builds up in the C13186 HSS bit during all-day pneumatic drilling?

High-speed steel conducts heat away from the 135-degree point, but the bright uncoated finish offers no thermal barrier during sustained use.

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