Chicago-Latrobe
Chicago-Latrobe 50745 118 Degree Heavy-Duty Extra Long Drill Bit 25/64 in
Extra-long 25/64 inch high-speed steel drill bit with a 118-degree notched point and black oxide finish for deep drilling up to nine inches
- Extra-long reach drills holes up to 9 in deep
- 118-degree notched point starts cleanly in metal
- High-speed steel with black oxide resists wear
- 25/64 in fractional size fits standard chucks
- General-purpose grade handles routine machining tasks
Extra-Long Bit for Deep Holes
This Chicago-Latrobe drill bit measures 25/64 inch in diameter and reaches a maximum drilling depth of 9 inches. Its extra-long design targets maintenance crews and fabricators who must bore through thick plate or deep cavities without changing tools. The 118-degree notched point starts cleanly in steel and cast iron. General-purpose machining grade suits routine shop work.
High-Speed Steel with Black Oxide
High-speed steel construction resists heat during extended cuts, while the black oxide finish reduces chip welding and adds corrosion protection. A 28-degree helix angle clears swarf efficiently from deep flutes. The fractional-inch shank fits standard three-jaw chucks and quick-change adapters. No specialised holder or coolant system is mandated by the design.
Ships Direct from Distributor
The bit arrives as a single cutting tool with no extra pilots, bushings or coating kits. Manufacturer literature notes that orders of $75 or more qualify for free shipping from the supplier. No software, jigs or sharpening guides are bundled. Buyers needing stepped diameters or carbide tips must source those separately.
Highlights
- Extra-long reach drills holes up to 9 in deep
- 118-degree notched point starts cleanly in metal
- High-speed steel with black oxide resists wear
- 25/64 in fractional size fits standard chucks
- General-purpose grade handles routine machining tasks
Specifications
| Brand | CHICAGO-LATROBE |
|---|
Questions about this item
How deep can the 25/64 inch drill bit reach in a single pass?
The maximum drilling depth is 9 inches, allowing extended reach through thick workpieces.
Does the black oxide high speed steel bit run hot during continuous drilling?
Black oxide finish reduces friction and heat buildup, helping the bit stay cooler during prolonged use.
What shank style fits the 25/64 inch extra long drill bit?
The bit uses a standard straight shank compatible with common drill chucks and collets.
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