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IRWIN Step Drill Bit Set: 3 Pc, 1/8" to 1-3/8", Black Oxide HSS - High-Speed Steel Step Drill Bit Sets
IRWINHigh-Speed Steel Step Drill Bit Sets

IRWIN Step Drill Bit Set: 3 Pc, 1/8" to 1-3/8", Black Oxide HSS

IRWIN High-Speed Steel Step Drill Bit Sets.

SKU 3G-OTH-198664

Brand
IRWIN
Item
Step Drill Bit Set: 3 Pc, 1/8" to 1-3/8", Black Oxide HSS
Category
High-Speed Steel Step Drill Bit Sets
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Local availability & support

Delivery
Worldwide DHL shipping from Singapore; 7–14 business days door-to-door for most destinations.
Payment
Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.

Technical Specifications

IRWIN
Manufacturer Part Number
10225

Technical Documents

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IRWIN Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

IRWIN High-Speed Steel Step Drill Bit Sets.

Frequently Asked Questions

What is the IRWIN Step Drill Bit Set 10225 used for?

The IRWIN Step Drill Bit Set 10225 is used for drilling stepped holes in thin materials like sheet metal, plastic, and wood. It is ideal for electrical, plumbing, and HVAC applications where clean, burr-free holes of varying diameters are needed without changing bits.

What are the specifications of the IRWIN Step Drill Bit Set 10225?

The IRWIN Step Drill Bit Set 10225 includes 3 pieces with a range from 1/8" to 1-3/8". It features black oxide high-speed steel (HSS) construction and a 135° split point for self-starting. The set is not impact rated, per the manufacturer specifications.

Where to buy the IRWIN Step Drill Bit Set 10225 worldwide?

You can source the IRWIN Step Drill Bit Set 10225 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 on this item.

How to select the right IRWIN step drill bit set for your application?

To select the right IRWIN step drill bit set, consider the material thickness and hole size range needed. The 10225 set covers 1/8" to 1-3/8" and is suitable for thin metals and plastics. For impact-rated applications, note this set is not impact rated. Always match bit coating to material 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 high-speed steel step drill bit sets. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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Compatible alternatives & equivalents

Cross-referenced by specification & description
IRWIN Step Drill Bit: 1/4" to 1-3/8", Black Oxide HSS, Hex Shank (MPN 10235)
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IRWIN Step Drill Bit: 6 mm to 18 mm, Black Oxide HSS, 3-Flats Shank (MPN 11103)
IRWIN Step Drill Bit: 3/16" to 1/2", Black Oxide HSS, Hex Shank (MPN 10232)
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IRWIN Step Drill Bit: 3/16" to 1/2", Black Oxide HSS, Hex Shank (MPN 10232)
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IRWIN Step Drill Bit: 4 mm to 22 mm, Black Oxide HSS, Hex Shank (MPN 11104)
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IRWIN Step Drill Bit: 1/8" to 1/2", Black Oxide HSS, Hex Shank (MPN 10231)

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