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IRWIN Step Drill Bit: 9/16" to 1", Black Oxide HSS - Flat-Bottom High-Speed Steel Step Drill Bits
IRWINFlat-Bottom High-Speed Steel Step Drill Bits

IRWIN Step Drill Bit: 9/16" to 1", Black Oxide HSS

SKU 3G-OTH-198901

Brand
IRWIN
Item
Step Drill Bit: 9/16" to 1", Black Oxide HSS
Category
Flat-Bottom High-Speed Steel Step Drill Bits
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Technical Specifications

IRWIN
Manufacturer Part Number
10220
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IRWIN Products
3G Electric (S) Pte. Ltd. — Singapore

Frequently Asked Questions

What is the IRWIN Step Drill Bit 10220 used for?

The IRWIN Step Drill Bit 10220 is used for drilling clean, burr-free holes in thin materials like sheet metal, plastic, and drywall. Its flat-bottom design creates stepped holes from 9/16" to 1", making it ideal for electrical, plumbing, and HVAC installations where precise hole sizing is required.

What are the specifications of the IRWIN Step Drill Bit 10220?

The IRWIN Step Drill Bit 10220 has a size range of 9/16" to 1", is made from black oxide high-speed steel (HSS), and features a 3-flats shank for secure chuck grip. It is not impact rated. The manufacturer part number is 10220, and it is classified as a flat-bottom step drill bit.

Where to buy the IRWIN Step Drill Bit 10220 worldwide?

You can source the IRWIN Step Drill Bit 10220 through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations. Contact us for availability and lead time; we supply this bit to procurement teams and maintenance professionals internationally.

How to select the right IRWIN step drill bit for metal?

To select the right IRWIN step drill bit for metal, match the hole size range to your application—this 10220 bit covers 9/16" to 1". Choose black oxide HSS for general metal drilling; it resists wear and reduces friction. Ensure the shank fits your drill chuck (3-flats design prevents slipping). Always use cutting oil for best results.

Used in

Common applications for IRWIN
Wood framing and decking — IRWIN ship auger bits (e.g., SKU 4AAT6) for deep drilling in timber
Electrical and plumbing installations — IRWIN hybrid utility bits (e.g., SKU 5ELR0) for drilling through wood and thin metal
Automotive assembly and repair — IRWIN power socket adapters (e.g., SKU 55EW60) for driving sockets with impact tools
General construction fastening — IRWIN impact Torx bits (e.g., SKU 787P77) for driving screws in metal and wood
Cabinet making and furniture assembly — IRWIN power bits (e.g., SKU 55EW15) for Phillips head screws in particle board and hardwood
Maintenance and repair tasks — IRWIN insert bits (e.g., SKU 55EW26) for quick bit changes in cordless screwdrivers

IRWIN Products

3G Electric supplies IRWIN flat-bottom high-speed steel step drill bits. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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