Quick facts
- Brand: Bosch
- Price: USD 7.99
- Rating: 4.60 (266 reviews)
When you need extra reach without stepping up to specialty tooling, the Bosch BL2743 delivers an aircraft-length 1/4 in. x 12 in. drill bit built for common shop and jobsite materials. Its black oxide finish and high speed steel (HSS) construction are paired with a speed helix design that’s made to drill faster than standard bits while helping reduce heat for improved longevity.
You can view the current price and full details on Amazon here.
Designed for versatility, this bit is suitable for a wide range of materials—from steel and non-ferrous metals to hardwoods and plastics—making it a handy choice for installers, fabricators, and DIYers who want one dependable extra-long bit in the toolbox.
- Speed helix design for three times faster drilling than standard bits
- Lasts 50% longer than high-speed steel
- Easier drilling with reduced heat to help extend drill bit life
- Extra length (aircraft) format: 1/4 in. x 12 in.
- For use in steel, copper, aluminum, brass, oak, maple, MDF, pine, PVC, polycarbonate, acrylic, ABS, nylon, and composite materials
Specs at a glance: 1/4 in. (6.35 mm) cutting diameter, 12 in. length, 135° cutting angle, spiral flute with 2 flutes, straight shank, black oxide finish, 1-piece pack.
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