Chicago-Latrobe
Chicago-Latrobe 48923 Screw Machine Drill Bit 23/64 in 118 Degrees
A screw machine drill bit with a 23/64 inch diameter, 118-degree point angle, high-speed steel construction, and left-hand cutting direction
- TypeDrill Bits
- Precise 23/64 inch diameter for exact hole sizing
- 118-degree point angle centres quickly on metal surfaces
- High-speed steel construction resists wear during repetitive drilling
- Bright uncoated finish allows easy inspection of cutting edges
- Left-hand cutting direction suits reverse-rotation applications
Chicago-Latrobe 48923 Drill Bit
The Chicago-Latrobe 48923 is a screw machine drill bit sized at 23/64 in with a decimal equivalent of 0.3594. It features a 118 degree conventional point angle and is constructed from high speed steel with a bright uncoated finish. This left hand cutting tool is designed for precision drilling tasks in a workshop or maintenance environment. It suits machinists and technicians who require a specific fractional size for screw machine applications.
Sustained Cutting Performance
The high speed steel construction provides consistent hardness for extended drilling cycles without rapid edge degradation. The 118 degree point angle supports steady centring and chip evacuation during continuous operation in suitable materials. As a non-coolant through design, heat management relies on external lubrication or peck drilling cycles to maintain performance over long production runs. The left hand cutting direction is specialised for specific operations such as removing broken fasteners or machining left hand threads.
Interface and Application Limits
The straight shank fits standard drill chucks and screw machine holders compatible with the 23/64 in diameter. The bright finish offers no coating barrier, limiting effectiveness in highly abrasive or high temperature alloys without supplemental coolant. Left hand rotation restricts use to machines capable of reverse spindle direction or dedicated left hand tapping heads. The conventional point geometry is not self centring on curved or hardened surfaces, requiring a centre drill or pilot hole for accurate starts.
Highlights
- Precise 23/64 inch diameter for exact hole sizing
- 118-degree point angle centres quickly on metal surfaces
- High-speed steel construction resists wear during repetitive drilling
- Bright uncoated finish allows easy inspection of cutting edges
- Left-hand cutting direction suits reverse-rotation applications
Specifications
| Brand | CHICAGO-LATROBE |
|---|---|
| Type | Drill Bits |
Questions about this item
How hot does the 118-degree point get during extended drilling?
The 118-degree conventional point on this high-speed steel bit distributes cutting heat evenly across the flutes; keeping the bit sharp and using cutting fluid prevents excessive temperature rise during long sessions.
What shank size must my drill chuck accept for the 23/64-inch bit?
The bit has a straight shank matching its 23/64-inch diameter, so your drill chuck must open to at least 0.3594 inches to hold it securely.
Will the left-hand cutting direction work in my standard right-hand drill motor?
No — this bit cuts only when the spindle rotates counter-clockwise; a standard right-hand drill motor turns clockwise and will not engage the flutes.
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