Chicago-Latrobe
Chicago-Latrobe 44027 27/64" HSS 118° Jobber Drill Bit
Drills 27/64 inch holes in metal using 118-degree high-speed steel jobber bit
- TypeDrill Bits
- MaterialHAWA
- 27/64 inch diameter matches precise fractional sizing needs
- 118-degree conventional point starts cleanly on contact
- High-speed steel construction resists wear during drilling
- Black oxide finish reduces friction and chip welding
- Decimal equivalent 0.4219 inch simplifies metric conversion
Chicago-Latrobe 44027 Jobber Drill Bit
This Chicago-Latrobe 44027 jobber-length drill bit is built from high-speed steel with a black oxide finish. The fractional 27/64 inch diameter and 118-degree conventional point suit general-purpose drilling in metal, wood and plastic. It is a new tool for trade professionals and DIY users who need a reliable replacement bit.
Replacing worn fractional HSS bits
Swap this bit in when an existing 27/64 inch high-speed steel drill shows dulled cutting edges or damaged flutes. The upgrade is worth it when the old bit no longer centres cleanly or produces excessive heat in steel. It is not for buyers who need a split-point geometry for self-centring in hard alloys or a coolant-through design for deep-hole production runs.
Fits standard three-jaw chucks
The straight shank seats in any drill press or hand drill that accepts a 27/64 inch shank, so no specialised holder is required. The jobber flute length clears chips from typical through-holes without the extra reach of a taper-length bit. Builders needing a smaller step size or a reduced-shank bit for a 1/2 inch chuck capacity should select a different diameter.
Highlights
- 27/64 inch diameter matches precise fractional sizing needs
- 118-degree conventional point starts cleanly on contact
- High-speed steel construction resists wear during drilling
- Black oxide finish reduces friction and chip welding
- Decimal equivalent 0.4219 inch simplifies metric conversion
Specifications
| Brand | CHICAGO-LATROBE |
|---|---|
| Type | Drill Bits |
| Material | HAWA |
Questions about this item
What chuck size is needed for the 27/64" drill bit?
A chuck capacity of at least 27/64 inch is required to hold the straight shank of this jobber length bit.
How do I avoid breaking the 118-degree conventional point when starting a hole?
Use a centre punch mark, apply steady pressure at low speed, and keep the bit perpendicular so the point centres without wandering.
When should I replace this High Speed Steel bit?
Replace it when the cutting lips are chipped, the 118-degree point is worn uneven, or drilling 0.4219 inch holes produces excessive heat and poor chip evacuation.
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