Drill America 15/32" x 18" HSS Extra Long Drill Bit vs BOSCH 1-Piece Extra Long Drill Bit 5/16 in x 12 in (Pack of 3)
Overall winner: BOSCH 1-Piece Extra Long Drill Bit 5/16 in x 12 in (Pack of 3)
Key Differences
Bosch (A) is sold as a 3-pack of extra-length 5/16 x 12 in bits and highlights a speed helix design and claims 50% longer life than standard HSS, while Drill America (B) is a single 15/32" HSS extra-long bit with black oxide coating for lubricity. Choose Bosch if you want a multi-piece set, a slightly higher-rated product and a design focused on faster drilling; choose Drill America if you need the specific 15/32" size with black oxide wear resistance
Drill America 15/32" x 18" HSS Extra Long Drill Bit
High-speed steel drill bit with extra reach for general purpose drilling. Features lubricity from black oxide finish and round shank for versatile toolholding; designed for chip evacuation in counterclockwise/right-hand cut operations. Noted for length and quality with mixed durability/sharpness feedback
Pros
- high-speed steel for general use
- black oxide finish for lubricity
- round shank for versatile toolholding
- long reach for extended drilling
Cons
- mixed durability and sharpness feedback
- some reports of breakage or dullness
BOSCH 1-Piece Extra Long Drill Bit 5/16 in x 12 in (Pack of 3)
Aircraft black oxide drill bit with speed helix for faster drilling in light-gauge metal, wood, and plastic. Per-pack info; longer life and reduced heat. One customer notes good quality and length enough to drill through walls
Pros
- speed helix design for faster drilling
- lasts longer than high-speed steel
- easier drilling with reduced heat
- per-pack information provided
Cons
- mixed durability feedback from customers
- some reports of breakage during first use
Head-to-Head
| Criteria | Winner |
|---|---|
| Price | BOSCH |
| Durability | Tie |
| Versatility | BOSCH |
| User Reviews | BOSCH |