Quick facts
- Brand: Greycore
- Price: USD 7.99
- Rating: 4.50 (465 reviews)
When you need extra reach without stepping up to a larger diameter, the Greycore Tools 1/8″ x 6″ Cobalt Aircraft Extension Bit set is a practical, workshop-ready choice. This 2-pack is made from M35 cobalt high speed steel (5% cobalt) with an industrial-strength titanium coating, helping the bits stand up to heat and abrasion during demanding drilling tasks.
You can view the current price and full details on Amazon here.
Each bit features a 135° split point tip designed to reduce slipping and support faster, smoother drilling starts—especially helpful when working on harder materials or when accuracy matters in tight spaces.
- 2-pack of 1/8″ x 6″ long cobalt drill bits for extended reach
- M35 cobalt high speed steel (5% cobalt) for durability in demanding drilling
- Titanium finish for added resistance to abrasion and high heat
- 135° split point tip helps prevent walking and supports smoother starts
- Works on hard metals, stainless steel, cast iron, steel, titanium alloy, hard plastics, and wood
With a straight shank and spiral flute design, these long-length bits fit a wide range of common drilling setups and are well suited for repair, construction, and woodworking applications.
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