Premium Cobalt for Hardened Materials, AIRCRAFT EXTENSION BITS. 12″ OVERALL LENGTH
FRACTIONAL | 12 inch Length | Predator Cobalt | Aircraft Extension
Super High-Grade Premium Cobalt Steel, Aircraft Extension. These long length drill bits are great for drilling holes in hard materials like stainless steels and in hard to reach places. Premium Cobalt. Cobalt bits are able to cut through the most hardened metals, including bronze, cast iron, stainless steel and titanium. They are also able to cut through weld seams. The cutting edge on our cobalt bits last for longer than a HSS bit.
Have questions? Call us: 800-350-8665
| Aircraft Extention Drill Bits – COBALT 12″ Length | Product Sku: |
| 1/8″ x 12″ Cobalt Aircraft Extension Drill Bit | DR-AEE18-12CO |
| 5/32″ x 12″ Cobalt Aircraft Extension Drill Bit | DR-AEG532-12CO |
| 3/16″ x 12″ Cobalt Aircraft Extension Drill Bit | DR-AEI316-12CO |
| 7/32″ x 12″ Cobalt Aircraft Extension Drill Bit | DR-AEJ732-12CO |
| 1/4″ x 12″ Cobalt Aircraft Extension Drill Bit | DR-AEL14-12CO |
| 5/16″ x 12″ Cobalt Aircraft Extension Drill Bit | DR-AEM51-12CO |
| 3/8″ x 12″ Cobalt Aircraft Extension Drill Bit | DR-AEO38-12CO |
| 7/16″ x 12″ Cobalt Aircraft Extension Drill Bit | DR-AER716-12CO |
| 1/2″ x 12″ Cobalt Aircraft Extension Drill Bit | DR-AES12-12CO |
Tip: Cobalt likes slow! Let the drill do the work! Use cutting fluid!
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