We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Chicago-Latrobe 42786 split-point drill bit with gold TiAlN coating

Chicago-Latrobe

Chicago-Latrobe 42786 135 Degree Heavy-Duty Jobber Length Drill pneumatic accessory

SKU CH-P573-Z4PKH

A 135-degree split-point jobber drill bit in high-speed steel with TiAlN coating, size P (.3230 decimal)

  • Product typeDrill Bits
  • Main materialHAWA
  • Split-point tip starts holes without wandering
  • 135-degree point angle cuts hard materials efficiently
  • High-speed steel body resists heat during heavy use
  • TiAlN coating reduces friction and extends bit life
  • Jobber-length shank fits standard pneumatic drill chucks

135-Degree Split-Point Jobber Drill

The Chicago-Latrobe 42786 is a high-speed steel drill bit with a TiAlN coating for extended wear resistance. Its 135-degree split point reduces walking and starts holes cleanly in steel and alloy. Decimal size .3230 matches letter P for precise pilot holes. Designed for maintenance and fabrication shops that need reliable jobber-length performance.

Sustained drilling in tough alloys

The TiAlN surface treatment resists heat buildup during repeated cuts, keeping the edge sharp longer than uncoated bits. Split-point geometry lowers thrust force, so the bit stays on centre without a centre punch. Non-coolant design means chips evacuate through standard flutes in through-hole and blind-hole work. Heavy-duty web construction resists breakage under continuous feed pressure.

Fits standard three-jaw chucks

Jobber-length shank seats securely in any 1/2-inch or larger drill chuck without adapters. No coolant holes simplify resharpening on a bench grinder or dedicated sharpener. Common error: running excessive RPM on stainless steel, which overheats the coating. Use cutting fluid and moderate speed to preserve the TiAlN layer and split-point geometry.

How it compares

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

Price $10.99
Cheaper than about 86% of the 5,493 comparable items (median $27.99).

Specifications

Product
Brand nameCHICAGO-LATROBE
Product typeDrill Bits
Size & build
Main materialHAWA

Questions about this item

Will the 135-degree split point on the 42786 bit generate extra heat or noise during all-day pneumatic drilling?

The 135-degree split point is designed for efficient chip removal and reduced walking, which helps control heat buildup during extended use; pneumatic operation itself is the main noise source.

What pneumatic tool setup must I already own to run this jobber-length bit?

You need a pneumatic drill or rotary tool with a chuck that accepts a 0.3230-inch diameter shank and delivers the air pressure and flow the tool manufacturer specifies.

Can the 42786 bit be used in an older pneumatic drill that only takes straight-shank jobber bits?

Yes, the bit has a standard straight shank at 0.3230 inch, so it fits older jobber-length chucks without adapters.

More in Bits, Hole Saws & Accessory Kits

Similar items