Chicago-Latrobe
Chicago-Latrobe 55440 118 Degree Silver & Deming Drill 1/2 Reduced Shank
A high-speed steel drill bit with a 118-degree point angle and 1/2 reduced shank for drilling 5/8 inch holes
- TypeDrill Bits
- MaterialHigh Speed Steel
- High-speed steel construction resists wear during heavy drilling
- 118-degree point angle centres quickly on metal surfaces
- Black oxide finish reduces friction and heat build-up
- 1/2-inch reduced shank fits standard drill chucks securely
- Model 55440 identifies the exact bit for reordering
Chicago-Latrobe 55440 Drill Bit
This reduced-shank drill bit is built for machinists and maintenance technicians who need to bore larger holes using a standard 1/2-inch chuck. It is manufactured from high-speed steel to withstand the heat and wear of drilling through steel and other tough alloys.
5/8 Inch Capacity and 118 Degree Point
The 5/8-inch cutting diameter handles medium-to-large hole-making in a single pass, while the 118-degree point angle centres quickly without a pilot hole in most ferrous materials. The black-oxide finish adds lubricity and corrosion resistance, though the bit will dull faster in hardened steels or abrasive composites.
1/2 Inch Reduced Shank Fit
The shank is turned down to 1/2 inch so the bit fits any three-jaw chuck rated for that capacity, eliminating the need for a larger drill press or special holder. Buyers whose chucks accept only smaller diameters cannot use this bit.
Highlights
- High-speed steel construction resists wear during heavy drilling
- 118-degree point angle centres quickly on metal surfaces
- Black oxide finish reduces friction and heat build-up
- 1/2-inch reduced shank fits standard drill chucks securely
- Model 55440 identifies the exact bit for reordering
Specifications
| Brand | CHICAGO-LATROBE |
|---|---|
| Type | Drill Bits |
| Material | High Speed Steel |
Questions about this item
Will the 1/2 reduced shank on this 55440 drill bit fit the chuck on my older drill press?
The 1/2 reduced shank is sized for standard 1/2 inch chucks found on most older drill presses and hand drills.
How can I confirm the 118 degree point angle is cutting correctly after I install the bit?
A properly sharpened 118 degree point produces clean, centred holes with minimal wandering and consistent chip evacuation in steel.
Does the 55440 come with any lubricant or case, or is it just the black oxide high speed steel bit?
The package contains the single 5/8 inch reduced shank drill bit with black oxide finish; cutting fluid and storage are sold separately.
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