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Irwin 30160 Cobalt Alloy Steel Jobber-Length Drill Bit, Gold Oxide Coating
The Irwin 30160 Cobalt Alloy Steel Drill Bit is a jobber-length bit engineered for demanding metal-drilling applications, including hardened steel, abrasive alloy metals, Titanium Nitride-coated surfaces, and stainless steel. This bit is available in five sizes ranging from 5/32" x 3-1/8" up to 3/8" x 5", including 1/4" x 4", 3/16" x 3-1/2", and 15/64" x 3-7/8" options, so shops can match the bit to the job at hand. Built from tough Cobalt Alloy Steel with sturdy web construction, every size in this lineup delivers high heat and abrasion resistance for heavy-duty use, while a 135° split-point tip minimizes walking and starts precise holes without a center punch. A Gold Oxide coating adds extra durability against friction and wear during extended drilling sessions on the jobsite or in the shop.
Key Features
- Size Range: Available in five jobber-length sizes — 5/32" x 3-1/8", 3/16" x 3-1/2", 15/64" x 3-7/8", 1/4" x 4", and 3/8" x 5" — to match a wide range of metal-drilling tasks.
- Durable Construction: Cobalt Alloy Steel with sturdy web design delivers high heat and abrasion resistance for long tool life.
- Precise Drilling: 135° split-point tip eliminates walking and centers the bit for accurate hole placement.
- Heavy-Duty Use: Engineered to tackle metal drilling, including abrasive alloy metal drilling on hardened steel, Titanium Nitride-coated surfaces, and stainless steel.
- Jobber-Length Design: Standard jobber-length sizing offers versatile reach for a variety of drilling depths and applications.
- Finish: Gold Oxide coating helps reduce friction and resist corrosion during use.
Technical Specifications
- Claims Needed: No
- Country of Origin: CHN
- Warranty: None
- Battery Included: No
Typical Applications
- Drilling Hardened Steel and Metal Alloys
- Stainless Steel Fabrication and Repair
- Titanium Nitride-Coated Material Drilling
- Professional and Industrial Metalworking
- General Maintenance and Jobsite Drilling
- Fabrication Shops and Metal Repair Facilities
Why Irwin?
Irwin backs this cobalt alloy steel drill bit lineup with sturdy web construction and a 135° split-point tip engineered for accurate, heavy-duty performance on hardened and abrasive metals. The Gold Oxide coating and Cobalt Alloy Steel construction are built to withstand the heat and abrasion of demanding metal-drilling jobs, making this a reliable choice across all five sizes for professionals working with tough alloys and stainless steel on the jobsite or in the shop.
Manufacturer Resources
Product Specs
- Bit Type:
- Cobalt Jobber
- Claims Needed:
- No
- Product Material Group:
- METAL
- Country of Origin:
- China
- Power Source:
- NON-ENERGY USING
- Individual Vs. Set (Syndigo):
- INDIVIDUAL
- Battery Included:
- No
- Product Primary Material:
- Cobalt Alloy Steel
- Coating:
- Gold Oxide
- list_batch:
- IRW-20260923
- Product Type:
- Drill Bit
- Product Finish:
- Gold Oxide
- Department:
- Electrical
- Product Subgroup:
- Hole Saws & Bits
- Product Material:
- Cobalt Alloy Steel
- Product Size:
- 1/4 x 4"
- Product Size:
- 15/64 x 3-7/8"
- Product Size:
- 3/8 x 5"
- Product Size:
- 3/16 x 3-1/2"
- Product Size:
- 5/32 x 3-1/8"