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Silver cylindrical twist drill bit with gold tip, 27/64 inch, 118 degree point angle

Chicago-Latrobe

Chicago-Latrobe 55119 Screw Machine Drill Bit 27/64 in 118 Degrees

SKU CH-Y2GJ-YBTF3

A 27/64 inch screw-machine drill bit with a 118-degree conventional point made from high-speed steel and TiN coating

  • TypeDrill Bits
  • MaterialHAWA
  • High-speed steel construction resists wear
  • TiN coating reduces friction and heat buildup
  • 118-degree point angle centres quickly in metal
  • 27/64 inch diameter matches standard tap drill sizes
  • Right-hand cutting direction suits conventional drilling operations

Product Identity

The Chicago-Latrobe 55119 is a screw-machine drill bit with a 27/64 inch diameter and a 118-degree conventional point. It is made from high-speed steel with a titanium nitride coating for general-purpose drilling in metalworking applications.

Setup Compatibility

Verify that your drill chuck or tool holder accommodates a 0.4219 inch decimal equivalent shank. Confirm the machine spindle rotates in a right-hand cutting direction and that coolant-through capability is not required for your operation.

Build and Daily Use

The high-speed steel substrate with TiN coating resists wear during repetitive holemaking. The non-coolant-through design suits standard external lubrication routines, while the conventional point geometry provides reliable centring on ferrous and non-ferrous materials.

Highlights

  • High-speed steel construction resists wear
  • TiN coating reduces friction and heat buildup
  • 118-degree point angle centres quickly in metal
  • 27/64 inch diameter matches standard tap drill sizes
  • Right-hand cutting direction suits conventional drilling operations

Specifications

BrandCHICAGO-LATROBE
TypeDrill Bits
MaterialHAWA

Questions about this item

Does the 55119 drill bit come in a set or do I need to buy a case separately?

The 55119 is sold as a single 27/64 inch screw machine drill bit; no case or additional bits are included.

When should I choose the 27/64 inch size over another diameter?

Choose the 27/64 inch bit when the job requires a .4219 inch hole; match the diameter to the fastener or pilot specification.

How does the 118 degree point angle affect drilling in steel?

The 118 degree conventional point centres quickly in steel and works well for general-purpose drilling with the high-speed steel TiN tip.

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