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Frequently Asked Questions
What is the IRWIN Step Drill Bit 10220cb used for?
The IRWIN Step Drill Bit 10220cb is used for drilling stepped holes in metal, plastic, and wood. Its black oxide cobalt construction provides heat resistance and durability for industrial applications like electrical panel work, automotive repair, and HVAC installation.
What are the specifications of the IRWIN Step Drill Bit 10220cb?
The IRWIN Step Drill Bit 10220cb has a size range of 9/16" to 1", features a black oxide cobalt finish, and a 3-flats shank for secure chuck grip. It is not impact rated. The manufacturer part number is 10220cb.
Where to buy the IRWIN Step Drill Bit 10220cb worldwide?
You can source the IRWIN Step Drill Bit 10220cb through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide locations, ensuring reliable supply for your operations.
How to select the right IRWIN step drill bit size?
To select the right IRWIN step drill bit, match the required hole diameter to the bit's step range. For the 10220cb, steps cover 9/16" to 1". Use a deburring step for clean edges. Always check material compatibility and ensure the shank fits your drill chuck.
Used in
Common applications for IRWINIRWIN Products
3G Electric supplies IRWIN cobalt step drill bits. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.












