Drillco 7/8 Cobalt S&D Drill (1000EC156)
Drillco 1000EC156 7/8" Cobalt S&D Drill from the 1000EC series is designed to increase the range of sizes that can be used in standard 1/2" portable drill chucks. This high-performance drill bit is ideal for professional applications where durability and precision are critical. Manufactured with cobalt steel, this drill is engineered for extended performance and durability when cutting hard metals and heat-resistant alloys.
7/8" drill diameter with a 1/2" reduced shank for use in smaller-capacity drill chucks.
Cobalt steel construction offers excellent heat resistance and long tool life.
3-flat shank design prevents slippage in 3-jaw handheld drill chucks.
135° split point minimizes walking and allows for quick, precise starts.
Spiral flute helps eject chips efficiently and supports coolant flow.
Black and Gold surface finish enhances lubricity and cutting efficiency.
Standard 6" overall length for easy handling and consistent setup.
Performs reliably in tough materials including stainless steel and alloy steels.
Reduces tool slippage, boosting operator control and safety.
Self-centering point eliminates the need for pre-drilling or spot drilling.
Durable build reduces downtime and costs due to fewer tool changes.
Technical Specifications:
Model: 1000EC156
Series: 1000EC (Cobalt S&D)
Drill Size: 7/8"
Shank Size: 1/2" with 3 flats
Point Angle: 135° Split Point
Surface Treatment: Black and Gold
Overall Length: 6"
Material: Cobalt Steel
Application: Hard and heat-resistant materials
Origin: Made in USA
Product identification
- Brand: Drillco
- Model / MPN: 1000EC156






