115Pcs cobalt drill bits set with storage case (1/16-1/2) 135° tip
Cobalt drill bits set in high-speed steel with 135° tip for metal, plastic, and wood. Sharp edges and durable performance noted, though some users report stainless steel drilling issues
Highlights
- cobalt drill bits set
- 135-degree tip design
- twist jobber length with storage case
Pros
- includes metal indexed storage case
- sharp edges stay sharp over long use
- works on multiple materials (metal, plastic, wood)
- covers a wide size range (1/16-1/2)
Cons
- some reports of missing bits in sets
- mixed durability when drilling steel
- inconsistent performance on stainless steel
Best For
Features
- 115-piece cobalt drill bits set in jobber length for metal, plastic, and wood
- 135 degree split point for centered, fast cutting with less pressure
- high-speed steel with gold oxide finish for improved wear and corrosion resistance
- fully ground bits with sharp cutting edges and a twist design to evacuate metal shavings
- round straight shank with metal indexed storage case
