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Cleveland Golf C13190 12 inch HSS extension drill bit, bright finish

Cleveland Golf

Cleveland Golf C13190 9/32x12 In HSS Extension Drill

SKU CH-2T7Z-RCA33 MPN C13190

A 12-inch HSS extension drill bit with a 9/32-inch diameter and 135-degree split point for deep-hole drilling

  • Product typeDrill Accessories
  • Main materialHigh speed steel
  • Extra-long 12 in reach for deep-hole drilling
  • 9/32 in diameter suits precise fractional-inch work
  • 135° split point starts cleanly without wandering
  • High-speed steel body resists heat during extended cuts
  • Bright uncoated finish allows easy resharpening on site

Aircraft Extension Drill

The Cleveland Golf C13190 is a 12 inch extra long drill bit made from high speed steel. It suits machinists and maintenance technicians who need reach in deep or confined work areas. The fractional 9/32 inch diameter and bright uncoated finish are intended for general purpose drilling tasks.

Replacing Shorter Bits

This bit replaces standard length drills when the workpiece exceeds normal flute reach. The jump is worth it when hole depth approaches the 1 1/8 inch maximum drilling depth and a 4xD ratio is required. The 135 degree split point reduces walking on hard materials.

Installation And Common Issues

The straight shank fits standard drill chucks without adapters. Ensure the chuck is tight to prevent slip at the extended length. Excessive run out or side load can fracture the bit because the long flute amplifies deflection. Use appropriate cutting fluid and steady feed pressure.

How it compares

Measured against everything we stock in Bits, Hole Saws & Accessory Kits, at today’s prices. Recalculated every night.

Price $14.99
Cheaper than about 77% of the 5,493 comparable items (median $27.99).

Specifications

Product
Brand nameCleveland
Model nameC13190
Product typeDrill Accessories
Size & build
Main materialHigh speed steel

Questions about this item

Will the 12 in overall length reach through my workpiece and still fit the chuck?

The bit measures 12 in total; the 9/32 in shank fits standard three-jaw chucks, leaving ample reach beyond the 1 1/8 in maximum drilling depth.

How do I start the hole accurately with the 135 degree split point?

The 135 degree split point self-centres — apply steady pressure and let the tip bite before increasing speed; do not centre-punch or the tip may wander.

When should I replace or resharpen this high-speed steel bit?

Replace or resharpen when the cutting lips dull, the split point rounds over, or the bright finish shows blue temper colours from overheating.

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