Chicago-Latrobe
Chicago-Latrobe 43796 135° Heavy-Duty Jobber Length Drill Bit Z .4130
A 135-degree split-point jobber drill bit in high-speed steel with TiCN coating, sized Z at .4130 decimal equivalent for heavy-duty drilling
- TypeDrill Bits
- MaterialHAWA
- 135° split point starts on contact without wandering
- TiCN coating resists wear for longer cutting life
- High-speed steel body handles heavy-duty drilling demands
- Jobber length gives standard reach for general use
- Size Z .4130 decimal fits precise letter-gauge holes
Chicago-Latrobe 43796 Jobber Drill Bit
The Chicago-Latrobe 43796 is a heavy-duty jobber length drill bit manufactured for demanding drilling tasks. It is built from high speed steel with a TiCN coating to extend tool life in tough materials. The split point design ensures accurate starting without centre punching. This bit suits professional mechanics and fabrication shops.
135 Degree Point Angle and Z Size Capacity
The 135 degree point angle provides strong centring and reduces thrust when drilling hard metals such as stainless steel. Decimal size .4130 handles letter Z holes for specific bolt clearance or tapping requirements. The jobber length offers standard reach for general workshop depth. Non-coolant through construction limits use in deep-hole high-heat applications.
Split Point High Speed Steel Construction
The split point geometry is the critical specification that determines suitability for precision work on hard alloys. It eliminates walk and lowers drilling force compared to conventional points. TiCN coating adds surface hardness and lubricity for stainless and titanium. Buyers needing coolant-fed drilling or carbide substrate must select a different tool.
Highlights
- 135° split point starts on contact without wandering
- TiCN coating resists wear for longer cutting life
- High-speed steel body handles heavy-duty drilling demands
- Jobber length gives standard reach for general use
- Size Z .4130 decimal fits precise letter-gauge holes
Specifications
| Brand | CHICAGO-LATROBE |
|---|---|
| Type | Drill Bits |
| Material | HAWA |
Questions about this item
Will this Z-size .4130 drill bit fit the chuck on my older 1/2-inch drill press?
The jobber-length shank is sized for standard drill chucks that accept letter-gauge bits, so it will seat in a 1/2-inch capacity chuck without an adapter.
How can I confirm the 135-degree split point is cutting correctly after I install the bit?
A properly centered split point starts on contact without walking, produces short curled chips in steel, and leaves a round hole at the .4130 decimal size.
Does the TiCN-coated high-speed steel bit come with a protective case or just the single bit?
The package contains only the individual 43796 drill bit; no case, index or additional accessories are included.
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