Cobalt drill bit set details
Drillco 5pc Cobalt Drill Bit Set, 9/16–1 x 8 (1000C5)
Drillco 1000C5 5pc Cobalt Drill Bit Set, 9/16–1 x 8 from the 1000C Series offers a reliable solution for drilling hard metals using handheld equipment. Featuring a 1/2" reduced shank design across all five cobalt bits, this set covers essential large sizes in 1/8" increments, expanding the capability of standard portable drill chucks. Built from tough cobalt steel, these bits are optimized for strength, durability, and heat resistance in demanding environments.
Includes five sizes: 9/16", 11/16", 13/16", 15/16", and 1" diameters with 1/2" reduced shank (3-flat design).
Constructed from high-performance cobalt steel for long-lasting durability.
Common flute and overall length simplify tool changes and maintain consistency.
Spiral flute geometry enhances chip evacuation and coolant distribution.
135° split point ensures accurate starts and minimizes bit walking.
Black and Gold surface treatment reduces friction and enhances cutting performance.
Standard 6" overall length for all bits in the set.
Expands the capability of standard 1/2" drill chucks to handle larger hole sizes.
Withstands heat and wear for prolonged use in tough metal applications.
Perfect for maintenance, fabrication, or industrial job site use.
Technical Specifications:
Drill Sizes: 9/16", 11/16", 13/16", 15/16", 1"
Material: Cobalt Steel
Shank Size: 1/2" (3-flat)
Point Angle: 135° Split Point
Surface Treatment: Black and Gold
Overall Length: 6" (each drill)
Series: 1000C (Cobalt Silver & Deming)
Application: Drilling hard metals
Origin: Made in USA
Product identification
- Brand: Drillco
- Model / MPN: 1000C5
Drillco drill bit set: see the listed specifications for this model.
