IRWIN Step Drill Bit: 1/4" to 3/4", TiN-Coated HSS
IRWIN High-Speed Steel Step Drill Bits.
SKU 3G-OTH-208882
Also listed as: 15103 ZR · 15103-ZR
Local availability & support — Singapore
- Local office
- 20 Woodlands Link #09-05, Singapore 738733
- Phone
- +65 8878 8355
- Delivery
- Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
- Payment
- Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
- Ships to
- Singapore
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Product Description
IRWIN High-Speed Steel Step Drill Bits.
Frequently Asked Questions
What is the IRWIN Step Drill Bit 15103ZR used for?
The IRWIN Step Drill Bit 15103ZR is used for drilling stepped holes in thin materials like sheet metal, plastic, and wood. Its TiN-coated HSS construction provides wear resistance and extends tool life. The 1/4" to 3/4" range suits electrical, plumbing, and HVAC applications where clean, burr-free holes are needed.
What are the specifications of the IRWIN Step Drill Bit 15103ZR?
The IRWIN Step Drill Bit 15103ZR has a 1/4" to 3/4" drilling range, is made of TiN-coated high-speed steel (HSS), and features a 3-flats shank for secure chuck grip. It is not impact rated. The manufacturer part number is 15103ZR. This bit is designed for general-purpose step drilling in thin materials.
Where to buy the IRWIN Step Drill Bit 15103ZR worldwide?
You can source the IRWIN Step Drill Bit 15103ZR 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 genuine IRWIN tools to procurement teams and maintenance professionals internationally.
How to select the right IRWIN step drill bit size?
Select the IRWIN step drill bit size based on the final hole diameter needed. The 15103ZR covers 1/4" to 3/4" in stepped increments. For larger holes, choose a bit with a wider range. Ensure the material thickness does not exceed the step depth. Always use cutting fluid for metal to prolong bit life and achieve clean cuts.
Used in
Common applications for IRWINIRWIN Products
3G Electric supplies IRWIN 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.
