Chicago-Latrobe
Chicago-Latrobe 55484 118 Degree Silver & Deming Drill 1/2 Reduced Shank
A 1 5/16 inch high-speed steel drill bit with a 118-degree point and half-inch reduced shank for large-hole drilling
- TypeDrill Bits
- 118-degree point centres quickly for accurate starts
- High-speed steel resists wear in tough materials
- Black-oxide finish reduces friction and adds corrosion resistance
- 1/2-inch reduced shank fits standard chucks
- 1 5/16-inch diameter handles large-hole drilling
Silver & Deming Drill 55484
The Chicago-Latrobe 55484 is a high-speed steel drill bit built for heavy-duty drilling tasks. It serves machinists and maintenance crews who need to enlarge existing holes in metal stock. The 118-degree point angle supports general-purpose cutting across a range of ferrous and non-ferrous materials.
Black Oxide Finish & Reduced Shank
A black oxide coating adds corrosion resistance and helps retain cutting lubricant during operation. The 1/2-inch reduced shank allows this large-diameter bit to fit standard drill chucks, letting operators use it on common bench or handheld drills without specialised tooling.
1 5/16-Inch Cutting Diameter
The bit cuts a precise 1 5/16-inch hole, making it the decisive specification for jobs requiring this exact bore size. Shops needing smaller or larger diameters must select a different bit from the Silver & Deming series.
Highlights
- 118-degree point centres quickly for accurate starts
- High-speed steel resists wear in tough materials
- Black-oxide finish reduces friction and adds corrosion resistance
- 1/2-inch reduced shank fits standard chucks
- 1 5/16-inch diameter handles large-hole drilling
Specifications
| Brand | CHICAGO-LATROBE |
|---|---|
| Type | Drill Bits |
Questions about this item
What does the 118-degree point angle mean for drilling performance?
The 118-degree point angle is a general-purpose geometry suitable for drilling mild steel, cast iron and similar materials with the high-speed steel cutting edges.
What chuck capacity is required for the 1/2 reduced shank?
The 1/2 reduced shank fits any drill chuck that accepts a 1/2 inch shank diameter, allowing the larger 1 5/16 inch bit to be used on standard 1/2 inch chucks.
How should the black oxide finish be treated during initial use?
Apply cutting fluid or oil before drilling to lubricate the high-speed steel flutes and prevent the black oxide coating from overheating and wearing prematurely.
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