![12 inch black oxide, aircraft extension drill bit](http://rockymountaintwist.com/cdn/shop/products/RMT-12H501-12inBlkOx-WEB.jpg?v=1593529352&width=1080)
12" Aircraft - Black Oxide - Fractional
Regular price$ 197.59
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135° Split Point - Fractional Sizes
- Black oxide surface treated for corrosion resistance and increased lubricity
- Industrial-grade NAS High Speed Steel (HSS) construction for superior strength and run-out characteristics
- Split point penetrates material surface on contact and prevents drill bit "walking"
- NAS 907 compliant
- One-piece construction
- Available and priced in 6 & 12 pack quantities (size specific)
Material applications: cast iron, steel alloy
WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov.