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Cle-Line C18458 135 degree heavy-duty parabolic jobber length drill bit, black and gold finish

Cle-Line

Cle-Line C18458 135 Degree Heavy-Duty Parabolic Jobber Length Drill Bit

SKU CH-716P-QEE4K

A 1/2 inch jobber length drill bit with a 135 degree split point for heavy-duty drilling

  • Product typeDrill Bits
  • 135-degree split point starts on contact for accurate holes
  • parabolic flute clears chips faster in deep drilling
  • high-speed steel construction resists wear in tough materials
  • jobber length fits standard chucks for versatile use
  • black and gold finish reduces friction and corrosion

Cle-Line C18458 Drill Bit

The Cle-Line C18458 is a 1/2 inch jobber length drill bit built from high speed steel with a black and gold finish. It features a 135 degree split point that helps start holes cleanly without a centre punch. The fractional inch size has a decimal equivalent of .5000 and zero coolant holes. This accessory suits general workshop and automotive drilling tasks.

Who should use this bit

Machinists and technicians drilling steel or alloy where a self-centring point reduces walking will benefit from the split point geometry. Builders who need coolant-through capability or a different point angle should look at other designs because this bit has no coolant holes and a fixed 135 degree angle. The jobber length serves standard depth requirements rather than deep-hole applications.

Deciding specification

The 135 degree split point angle is the single specification that determines suitability; it controls how the bit engages the workpiece and whether a centre punch is required. If your process demands a different point angle or coolant delivery, this bit will not match that need.

How it compares

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

Price $7.99
Cheaper than about 91% of the 5,493 comparable items (median $27.99).

Specifications

Product
Brand nameCLE-LINE
Product typeDrill Bits

Questions about this item

Does the 135-degree split point on the C18458 reduce heat build-up during extended drilling?

The 135-degree split point is designed for faster penetration and self-centering, which helps minimise friction and heat generation when drilling through tough materials.

What chuck size is required to hold the 1/2-inch shank of this jobber bit?

A drill chuck with a minimum 1/2-inch capacity is needed to secure the 0.5000-inch shank of this high-speed steel bit.

Can this black-and-gold high-speed steel bit be used in older corded drills without variable speed?

Yes, the jobber-length bit fits standard keyed or keyless chucks on older drills, though manual speed control is recommended for optimal cutting performance.

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