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Chicago-Latrobe 55117 screw machine drill bit 25/64 inch 118 degree point high speed steel TiN coated

Chicago-Latrobe

Chicago-Latrobe 55117 Screw Machine Drill Bit 25/64 in 118 Degrees

SKU CH-KXCZ-PARE3

A 25/64-inch high-speed steel screw-machine drill bit with a 118-degree conventional point and TiN coating for right-hand cutting

  • TypeDrill Bits
  • Precise 25/64 in diameter for accurate hole sizing
  • 118-degree conventional point ensures reliable centring in metal
  • High-speed steel construction resists wear during repeated drilling
  • Titanium nitride coating reduces friction and extends cutting life
  • Right-hand cutting direction matches standard drill rotation

Screw Machine Drill Bit 25/64 in

This Chicago-Latrobe screw machine drill bit measures 25/64 in with a 118-degree conventional point. It is made from high-speed steel with a TiN coating and features a right-hand cutting direction. The decimal equivalent is .3906. It suits general-purpose drilling tasks in a workshop or job site.

High Speed Steel with TiN Coating

The high-speed steel construction provides hardness and heat resistance for metal cutting. The TiN coating reduces friction and extends tool life during repetitive drilling. A non-coolant-through design means the bit relies on external lubrication or air cooling. These attributes support consistent performance in screw machine operations.

Right Hand Cutting and 118 Degree Point

The 118-degree conventional point centres quickly without a pilot hole. Right-hand cutting matches standard drill motor rotation for immediate use. The straight shank fits common chucks and collets used in screw machines. No coolant-through channel simplifies setup for dry or flood-cooled applications.

Highlights

  • Precise 25/64 in diameter for accurate hole sizing
  • 118-degree conventional point ensures reliable centring in metal
  • High-speed steel construction resists wear during repeated drilling
  • Titanium nitride coating reduces friction and extends cutting life
  • Right-hand cutting direction matches standard drill rotation

Specifications

BrandCHICAGO-LATROBE
TypeDrill Bits

Questions about this item

When will the 118-degree tip on the 25/64 bit need resharpening?

Resharpen the high-speed steel tip when cutting edges dull or chip; frequency depends on material hardness and feed rate.

What limits continuous drilling with the TiN-coated 25/64 bit?

Heat buildup in the workpiece and bit is the first limit; use peck drilling and cutting fluid to extend run time.

How much heat and noise does the 25/64 right-hand bit produce in all-day use?

Expect typical high-speed steel drill noise and heat; TiN coating reduces friction, but sustained loads raise tip temperature.

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