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IRWIN Step Drill Bit Set: 3 Pc, 1/8" to 3/4", 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 3/4", Black Oxide HSS

SKU 3G-OTH-198662

Brand
IRWIN
Item
Step Drill Bit Set: 3 Pc, 1/8" to 3/4", Black Oxide HSS
Category
High-Speed Steel Step Drill Bit Sets
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Technical Specifications

IRWIN
Manufacturer Part Number
10502ZR
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IRWIN Products
3G Electric (S) Pte. Ltd. — Singapore

Frequently Asked Questions

What is the IRWIN Step Drill Bit Set 10502ZR used for?

The IRWIN Step Drill Bit Set 10502ZR is used for drilling stepped holes in thin materials like sheet metal, plastic, and wood. It is ideal for electrical, plumbing, and automotive 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 10502ZR?

This 3-piece set includes step drill bits ranging from 1/8" to 3/4". They are made from high-speed steel with a black oxide finish and a 135° split point for reduced walking. The bits are not impact rated, as per the manufacturer's specification.

Where to buy the IRWIN Step Drill Bit Set 10502ZR worldwide?

You can source the IRWIN Step Drill Bit Set 10502ZR through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations, ensuring you receive genuine IRWIN products for your operations.

How to select the right IRWIN step drill bit size?

Select the IRWIN step drill bit based on the hole diameter range needed. The 1/8" to 3/4" set covers common sizes for electrical enclosures and metal panels. For thicker materials, use a slower speed and apply cutting oil to extend bit life and achieve clean cuts.

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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