Chicago-Latrobe
Chicago-Latrobe 43617 17/64" HSS 135° Split Point Drill Bit
A 17/64 inch high-speed steel jobber drill bit with a 135 degree split point for accurate starting
- TypeDrill Bits
- MaterialHAWA
- 135° split point starts on contact for accurate holes
- 17/64 in high-speed steel resists wear in tough materials
- TiCN coating reduces friction and extends bit life
- Jobber length gives 4-1/8 in reach for deep drilling
Chicago-Latrobe 43617 17/64" HSS Split Point Bit
The Chicago-Latrobe 43617 is a jobber length drill bit manufactured from high speed steel for general purpose drilling tasks. It features a 135 degree split point design that promotes accurate starts and reduces walking on contact. The bit is finished with a TiCN coating to enhance surface hardness and extend tool life during repetitive use. It suits trade professionals and maintenance crews requiring reliable fractional sizing.
17/64" Capacity and Drilling Headroom
The 17/64 inch diameter provides a decimal equivalent of .2656 for precise hole sizing in metal, wood, and plastic materials. The jobber length flute offers standard reach for typical through-hole and blind-hole applications in sheet stock and structural sections. The split point geometry handles moderate feed rates without centre punch preparation on softer alloys. The bit lacks coolant-through capability, limiting sustained high-speed production runs in hardened steels or deep cavities where heat evacuation is critical.
Highlights
- 135° split point starts on contact for accurate holes
- 17/64 in high-speed steel resists wear in tough materials
- TiCN coating reduces friction and extends bit life
- Jobber length gives 4-1/8 in reach for deep drilling
Specifications
| Brand | CHICAGO-LATROBE |
|---|---|
| Type | Drill Bits |
| Material | HAWA |
Questions about this item
Will the 17/64" diameter work with the 1/4" chuck on my older drill?
The 17/64 inch drill bit has a decimal equivalent of .2656 inch, which exceeds the 1/4 inch capacity of that chuck, so it will not fit.
How can I confirm the 135 degree split point is cutting correctly after I start drilling?
A properly functioning 135 degree split point will self-centre immediately and produce short, curled chips in steel without needing a centre punch to start the hole.
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