Chicago-Latrobe
Chicago-Latrobe Jobber Drill 27/64" HSS Split Point 41027
High-speed steel jobber drill bit with a 135-degree split point for accurate starting in metal
- TypeDrill Accessories
- MaterialHAWA
- Split-point tip reduces walking on hard surfaces
- 135° point angle suits general-purpose drilling
- High-speed steel construction resists heat during use
- Bright uncoated finish allows easy resharpening
Chicago-Latrobe 27/64" Jobber Drill Bit
This Chicago-Latrobe jobber drill bit measures 27/64 inch with a decimal equivalent of .4219. It is made from high-speed steel and features a bright, uncoated finish. The 135-degree split point helps the bit start on contact and reduces walking during use. It suits general-purpose drilling in metal, wood and plastic where a standard fractional size is required.
Capacity and headroom for fractional drilling
The bit handles holes up to its 27/64 inch diameter in materials suited to high-speed steel. It runs out when the application demands a coated or carbide tool for extended life in abrasive or high-heat conditions. The uncoated surface limits wear resistance compared with treated alternatives. Buyers who need coolant-through capability or a different point geometry should select another design.
Highlights
- Split-point tip reduces walking on hard surfaces
- 135° point angle suits general-purpose drilling
- High-speed steel construction resists heat during use
- Bright uncoated finish allows easy resharpening
Specifications
| Brand | Chicago-Latrobe |
|---|---|
| Type | Drill Accessories |
| Material | HAWA |
Questions about this item
Will the 27/64 inch split-point bit start cleanly in my older drill press without a centre punch?
The 135-degree split point is self-centring, so it bites immediately on contact and reduces the need for a centre punch even on a worn chuck.
How can I confirm the 41027 bit is cutting correctly after the first hole?
Check that the chips are tight, golden spirals and the hole measures .4219 inch; rough chips or a loose fit mean the speed or feed needs adjustment.
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