Drillco 21pc Cobalt Drill Set 1/16–3/8 x 64 (500A21)
Drillco 500A21 21pc Cobalt Drill Set 1/16–3/8 x 64 is engineered for superior performance in demanding drilling applications. This set includes 21 M42 cobalt steel drills ranging from 1/16" to 3/8" in 64ths, offering high red hardness that allows speeds up to 30% faster than standard HSS drills. Each drill is built to Type J aircraft specifications, providing durability and precision when drilling hard materials such as stainless steel, titanium, and high-strength alloys.
21-piece cobalt drill set covering 1/16" to 3/8" in 64ths
High red hardness allows faster drilling speeds than HSS
Type J aircraft spec construction for superior durability
Straight flutes for cleaner hole finish
Heavy-duty design suitable for hand-held or CNC operations
Versatile set for multiple drilling applications
Efficient drilling in stainless steel, titanium, and high-strength alloys
Long-lasting performance with reduced wear over time
Technical Specifications:
Type: Cobalt Drill Set – Heavy Duty
Number of Pieces: 21
Size Range: 1/16" to 3/8" (increments of 1/64")
Material: M42 Cobalt Steel
Flute Style: Straight
Applications: Drilling in stainless steel, titanium, and high-strength alloys; suitable for hand-held or CNC operations
Product identification
- Brand: Drillco
- Model / MPN: 500A21
