- 6–10 business days door-to-door; Bea Cukai clearance typically 3–5 business days.
- Invoicing in IDR or USD. Bank transfer and corporate PO accepted.
- Dikirim ke: Jakarta, Surabaya, Bandung, Medan, Batam
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What is the IRWIN Step Drill Bit 10311ZR used for?
The IRWIN 10311ZR step drill bit is used for drilling clean, burr-free holes in thin materials like sheet metal, plastic, and drywall. Its 7/8" maximum diameter and black oxide HSS construction suit electrical, HVAC, and general fabrication work where multiple hole sizes are needed from one bit.
What are the specifications of the IRWIN Step Drill Bit 10311ZR?
The IRWIN 10311ZR is a high-speed steel step drill bit with a 7/8" maximum step diameter, black oxide finish, and a 3-flats shank to prevent slipping in the chuck. It is not impact rated, making it suitable for standard drilling applications in thin materials.
Where to buy the IRWIN Step Drill Bit 10311ZR worldwide?
3G Electric supplies the IRWIN 10311ZR step drill bit to customers worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your site. Contact us for pricing and lead time on this high-speed steel bit.
How to select the right step drill bit for sheet metal?
For sheet metal, choose a step drill bit like the IRWIN 10311ZR with a black oxide HSS coating for heat resistance and a 3-flats shank for secure chuck grip. Match the maximum step diameter to your largest hole size. Avoid impact-rated bits unless your drill supports impact mode.
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3G Electric memasok IRWIN high-speed steel step drill bits. Kami menyediakan produk asli dengan ketersediaan tersedia di gudang untuk SKU umum, dokumentasi teknis, dukungan commissioning, dan layanan garansi — di seluruh dunia.













