Step Drill Bit for Metal,1-3/8",Cobalt Drill Bits, | Heavy Duty for Stainless Steel, Hard Metal, Aluminum, Copper, Industrial Grade,5-Steps. Co138Z 7/8" to 1-3/8" beautytoolsUK_Aug2026 DRIVE COMPATIBILITY: Works with 2

DRIVE COMPATIBILITY: Works with 2

Quick-drying material saves time

If an elbow is not an option for your application

Both day and night can see all the details

Maximize usability: can be easily used as a light box for tracing

Step Drill Bit for Metal,1-3/8",Cobalt Drill Bits, | Heavy Duty for Stainless Steel, Hard Metal, Aluminum, Copper, Industrial Grade,5-Steps. Co138Z 7/8" to 1-3/8" beautytoolsUK_Aug2026 DRIVE COMPATIBILITY: Works with 2Step Drill Bit for Metal,1 3 8",Cobalt Drill Bits, Heavy Duty for Stainless Steel, Hard Metal, Aluminum, Copper, Industrial Grade,5 Steps. Co138Z Industrial Grade Cobalt Step Drill Bit for Tough Metals The CO138Z Cobalt Step Drill Bit (7 8" to 1 3 8") is built for professionals who demand durability and speed when drilling through stainless steel, hardened metals, and thick alloys. Made with 3% cobalt steel (M2 grade), this 5 step bit delivers 5X