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Silver cylindrical twist drill bit with gold tip, 1/2 inch diameter, 118-degree point angle

Chicago-Latrobe

Chicago-Latrobe 55124 Screw Machine Drill Bit 1/2 in 118 Degrees

SKU CH-9NM3-97FH9

High-speed steel screw-machine drill bit with 118-degree conventional point for right-hand cutting

  • TypeDrill Bits
  • 1/2 in drill bit handles large-hole tasks
  • 118-degree conventional point starts accurately on metal
  • High-speed steel body resists wear in production use
  • TiN coating reduces friction and extends cutting life
  • Right-hand cut suits standard drill motors

Chicago-Latrobe 55124 Drill Bit

This Chicago-Latrobe 55124 is a screw machine drill bit designed for general-purpose drilling in metal and other materials. It suits machinists, maintenance technicians and hobbyists who need a reliable 1/2 inch cutting tool for workshop tasks. The right-hand cutting direction matches standard drill press and handheld drill operation. Buyers who need a different point angle or a left-hand cutting bit should look elsewhere.

High-Speed Steel Construction

The bit is manufactured from high-speed steel with a TiN coating to resist wear and heat during extended use. Its conventional 118 degree point angle centres easily on flat surfaces without a pilot hole. The non-coolant-through design means chips must be cleared manually or with external coolant in deep holes. The shank fits standard 1/2 inch chucks for secure clamping.

Ready-to-Use Cutting Tool

No additional accessories or software are bundled with this drill bit; it arrives as a single cutting tool ready for immediate installation. The TiN coating extends service life compared with uncoated high-speed steel, reducing the frequency of bit changes. Users should match cutting speeds and feeds to the workpiece material for best results.

Highlights

  • 1/2 in drill bit handles large-hole tasks
  • 118-degree conventional point starts accurately on metal
  • High-speed steel body resists wear in production use
  • TiN coating reduces friction and extends cutting life
  • Right-hand cut suits standard drill motors

Specifications

BrandCHICAGO-LATROBE
TypeDrill Bits

Questions about this item

What does the 118-degree point angle mean for drilling performance?

The 118-degree conventional point provides a standard cutting geometry suitable for general-purpose drilling in metal and other materials.

What shank style does the 1/2-inch drill bit use for mounting?

The bit features a straight shank that fits standard three-jaw chucks on drill presses and handheld drills.

How should the TiN-coated high-speed steel bit be installed to avoid runout?

Insert the shank fully into the chuck and tighten all three jaws evenly so the bit runs true before starting the cut.

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