Irwin Tools 585-54009 9-piece bolt extractor set pneumatic accessory
- Drill Bits
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A 1/2 inch carbide jobber drill bit with a 118 degree point angle and four-facet point design
This Cleveland C47718 jobber length drill bit is manufactured from carbide for high wear resistance in demanding applications. The 1/2 inch fractional size with a .5000 decimal equivalent suits precision drilling tasks in tough materials. Its 118 degree four facet point design promotes accurate centring and reduced thrust during operation. The bright uncoated finish is intended for general purpose use without coolant through the tool.
The jobber length format fits standard drill chucks and collets used in bench or handheld machines. Carbide construction allows higher cutting speeds in hardened steels or abrasive alloys where high speed steel would dull quickly. The 118 degree point angle is a general purpose geometry not optimised for specialised deep hole or high feed strategies. Buyers needing coolant through capability or coated performance for extended tool life should select a different specification.
Measured against everything we stock in Bits, Hole Saws & Accessory Kits, at today’s prices. Recalculated every night.
| Product | |
|---|---|
| Brand name | CLEVELAND |
| Product type | Drill Bits |
| Size & build | |
| Main material | HAWA |
The carbide tip keeps a sharp edge far longer than high-speed steel, but exact drill-life in steel varies with feed rate, coolant use and material hardness.
Without a coating the flute runs warmer and welds chips more easily, so steady flood coolant or frequent peck cycles are needed to control heat on long jobs.
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