Chicago-Latrobe
Chicago-Latrobe 52457 57/64 in 118° Silver & Deming Drill 1/2 Reduced Shank
A 57/64 inch high-speed steel drill bit with a 118-degree point and 1/2 inch reduced shank
- TypeDrill Bits
- 57/64 inch diameter drills large holes
- 118 degree point angle starts cleanly in metal
- High-speed steel construction resists heat and wear
- Black oxide finish reduces friction and corrosion
- 1/2 inch reduced shank fits standard chucks
Drill Bit Size 57/64 Inch
The Chicago-Latrobe 52457 is a Silver & Deming drill bit with a 57/64 inch cutting diameter. It is designed for machinists and fabricators who need to enlarge existing holes or create large-diameter bores in metal. The 1/2 inch reduced shank allows use in standard drill chucks with limited capacity.
118 Degree Point Angle Under Load
The 118 degree point angle provides a conventional cutting profile suited for general-purpose drilling in steel and other ferrous materials. Under sustained feed pressure, the high-speed steel body maintains hardness while the black oxide finish helps retain lubricant and resist chip welding during extended cuts.
Reduced Shank Compatibility
The defining specification is the 1/2 inch reduced shank, which determines whether the bit fits the chuck of the intended drill press or handheld drill. Buyers whose equipment accepts only smaller shank diameters cannot use this bit without an adapter or a different tool.
Highlights
- 57/64 inch diameter drills large holes
- 118 degree point angle starts cleanly in metal
- High-speed steel construction resists heat and wear
- Black oxide finish reduces friction and corrosion
- 1/2 inch reduced shank fits standard chucks
Specifications
| Brand | CHICAGO-LATROBE |
|---|---|
| Type | Drill Bits |
Questions about this item
How much heat does the 118-degree point generate when the 57/64-inch bit runs all day?
The 118-degree point angle on this high-speed-steel bit is designed for general-purpose drilling; heat build-up depends on material, speed, feed and coolant use rather than a fixed thermal rating.
What chuck size must I already own for the 1/2 reduced shank to fit?
The 1/2 reduced shank fits any drill chuck that accepts a 1/2-inch shank, so a 1/2-inch or larger capacity chuck is required.
Will the black-oxide finish on this 57/64-inch bit wear faster when used with an older drill press?
Black-oxide coating adds lubricity and corrosion resistance; wear rate depends on run-out, spindle condition and cutting parameters, not solely on the age of the press.
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