Greycore Tools 1/8 Inch x 12 Inch Cobalt Aircraft Extension Bit – M35 Cobalt Drill Bit, Industrial Titanium Coating – Drill Bits for Steel, Hard Metal, Cast Iron, Wood, Plastic (1/8" x 12")
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4.5
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About this product
Greycore Tools is committed to delivering professional power tools and accessories whose job is to ease your work while ensuring safe use. Our products are made with premium-grade materials that meet the highest quality and safety requirements. Built to exceed your expectations in terms of durability and functionality. Greycore Tools is confident in the construction of our products. Our titanium coated drill bits are designed, engineered and manufactured to highest possible standards; optimizing durability and service life. If you are unsatisfied with your purchase in any way, please feel free to return the item to Greycore Tools for a full replacement. Warranty excludes dull and misused bits. Details: ✅ Application: Designed to drill holes in hard metals, wood, plastics, etc. when extra reach is needed. ✅ Compatible: Compatible with all standard chucks; Bosch, DeWalt, Hitachi, Hilti, Makita, Milwaukee, etc. ✅ Design: 1/8" x 12" ✅ Durability: M35 Cobalt HSS (5% Cobalt) with professional grade titanium coating ensures long lasting sharpness and durability Package Includes: 1 – 1/8" x 12" Cobalt Aircraft Extension BitPrice History
- Best price now: $5.99 at Amazon — the lowest price we've recorded.
- Lowest recorded: $5.99 at Amazon on Sep 17, 2026
- Highest recorded: $9.16 at eBay on Oct 4, 2026
- Tracked since Jul 7, 2026 across 2 retailers (8 price checks)