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Silver 12 inch aircraft extension drill bit 13/32 inch high speed steel split point 135 degree angle

Cleveland Golf

Cleveland Golf C13198 13/32 in 12 in HSS pneumatic accessory

SKU CH-QTVA-YBSXK MPN C13198

13/32 inch HSS aircraft extension drill bit, 12 inch overall length with 135 degree split point for high-performance machining

  • Product typeDrill Accessories
  • Main materialHigh speed steel
  • Extended reach with 12 in overall length
  • Precise 13/32 in fractional diameter
  • 135° split point reduces wandering
  • High speed steel resists heat wear
  • Bright finish suits general machining

Aircraft Extension Drill

This Cleveland Golf C13198 is an extra-long drill bit designed for aircraft maintenance and deep-hole applications. It suits mechanics and fabricators who need extended reach in metalworking tasks. The high-speed steel construction supports demanding machining operations. It is not for buyers who need coated cutting edges or shorter jobber-length bits.

Practical limits of the HSS uncoated interface

The bright uncoated surface performs well in general-purpose steel and alloy drilling but wears faster in abrasive or high-heat materials. The 135-degree split point aids self-centring yet requires rigid setups to prevent deflection at full 12-inch extension. Maximum drilling depth is 1 5/8 inches per pass. It is not for production lines needing coolant-fed or carbide-tipped tooling.

13/32 inch fractional diameter decides fit

The 13/32 inch fractional size determines compatibility with specific bolt clearances and rivet holes in airframe work. The 4xD proportion and 21 to 34-degree helix range control chip evacuation in deep cuts. Verify the exact fractional diameter against your drawing before purchase. It is not for metric-only hole patterns or tapered reamer preparations.

How it compares

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

Price $23.99
Cheaper than about 57% of the 5,493 comparable items (median $27.99).

Specifications

Product
Brand nameCleveland
Model nameC13198
Product typeDrill Accessories
Size & build
Main materialHigh speed steel

Questions about this item

Should I choose the 13/32 inch size or a different diameter?

This bit is 13/32 inch diameter and 12 inches long; pick it when the hole must be that exact fractional size and reach.

What does the 135 degree split point do in a real machine?

The 135 degree split point centres quickly on metal and reduces walking, so the bit starts cleanly without a centre punch.

What standard governs the shank and what does it cap?

The straight round shank fits standard 1/2 inch or larger drill chucks, capping the maximum chuck size you can use.

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