Irwin Tools 585-54009 9-piece bolt extractor set pneumatic accessory
- Drill Bits
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A 9/16 inch high-speed steel jobber drill bit with a 118-degree conventional point for general-purpose drilling
The Chicago-Latrobe 44236 is a jobber length drill bit made from high-speed steel for general purpose drilling tasks. It features a conventional 118 degree point angle and a bright uncoated finish. The fractional size is 9/16 in with a decimal equivalent of .5625 in. It suits tradespeople and DIY users needing a standard length bit for common materials.
This bit drills holes up to 9/16 in diameter in materials suited to high-speed steel. The 118 degree point provides effective centring and chip evacuation in mild steel, aluminium and plastic. The bright finish offers no coating protection, so tool life drops in abrasive alloys or high-heat applications. It lacks coolant holes, limiting deep-hole performance without external lubrication.
The straight shank fits standard three-jaw chucks on handheld drills and drill presses. No special tooling or coolant-through spindles are required. The jobber length gives enough reach for typical through-hole depths while keeping runout manageable. Users needing coolant-fed drilling or coated bits for exotic materials must select a different tool.
Measured against everything we stock in Bits, Hole Saws & Accessory Kits, at today’s prices. Recalculated every night.
| Product | |
|---|---|
| Brand name | CHICAGO-LATROBE |
| Product type | Drill Bits |
| Size & build | |
| Main material | HAWA |
The 118-degree conventional point is a general-purpose geometry suited for a wide range of drilling machines, including older drill presses operating at standard speeds for high-speed steel bits.
A properly functioning bit will produce continuous, well-formed chips and a clean hole at the 0.5625-inch diameter without excessive heat buildup or wandering at the start of the cut.
The item is supplied as a single drill bit; no case, pouch, or index is included, so separate storage must be purchased if required.
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