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
Silver high-speed steel drill bit with TiN coating, 3/8 inch size, 118-degree point, right-hand cutting direction

Chicago-Latrobe

Chicago-Latrobe 55116 Screw Machine Drill Bit 3/8 in 118 Degrees

SKU CH-Z18B-PC188

A screw machine drill bit with a 118-degree point angle and .3750 decimal equivalent, made from high-speed steel with TiN coating for right-hand cutting

  • Product typeDrill Bits
  • 3/8 in drill bit suits standard chucks
  • 118° point angle centres quickly on metal
  • High-speed steel construction resists wear during drilling
  • TiN coating reduces friction and extends cutting life
  • Right-hand cutting direction matches common drill rotation

Chicago-Latrobe 55116 Screw Machine Drill Bit

The Chicago-Latrobe 55116 is a screw machine drill bit sized at 3/8 in with a 118 degree point angle. It features a conventional point geometry made from high speed steel with a TiN coating. The bit has a right hand cutting direction and a decimal equivalent of .3750.

Suited for general purpose drilling in steel

This bit suits machinists and maintenance technicians who need a standard length drill for screw machine or portable drilling applications. It is not for buyers who require coolant through capability or a split point design for self centring in harder materials.

118 degree point angle

The 118 degree point angle is the primary specification that determines suitability for conventional drilling tasks. This angle provides effective cutting action for general purpose use in ferrous metals without the need for specialised point geometries.

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

Questions about this item

Does the 118-degree point angle limit the materials this bit can drill?

The 118-degree conventional point is designed for general-purpose drilling in metal, wood and plastic; it centres well but is not optimised for hard or abrasive alloys.

What shank size does the 3/8-inch bit need in a drill chuck?

The bit has a straight 3/8-inch (0.3750 decimal) shank, so it requires a chuck that opens to at least 3/8 inch or a 1/2-inch chuck with a reducer.

How is the TiN-coated high-speed steel bit installed, and what step is often missed?

Insert the shank fully into the chuck, tighten all three jaws evenly, then verify the bit runs true before drilling; the step often missed is re-checking tightness after the first few seconds of rotation.

More in Bits, Hole Saws & Accessory Kits

Similar items