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Irwin 3016033 Cobalt Alloy Steel Jobber-Length Drill Bit, 5/16 In. x 4-1/2 In., 135° Split-Point
The Irwin 3016033 Cobalt Alloy Steel Jobber-Length Drill Bit is part of Irwin's 30160 Series, engineered for drilling into hardened steel, alloys, titanium nitride coated material, and stainless steel. This bit measures 5/16 In. in diameter by 4-1/2 In. overall length and is built from tough cobalt alloy steel with sturdy web construction for demanding metal-drilling applications. A 135° split-point tip resists walking for accurate, on-target hole starts, while a gold oxide finish adds surface durability. The 30160 Series lineup also includes additional models such as 3016018, 3016020, and 3016022, giving shops and jobsites a range of jobber-length cobalt bit sizes built on the same heavy-duty construction.
Key Features
- Trade Size: 5/16 In. diameter x 4-1/2 In. overall length, a jobber-length profile suited for standard-depth drilling.
- Durable Construction: Cobalt Alloy Steel construction delivers high heat and abrasion resistance for heavy-duty metal drilling.
- Heavy-Duty Use: Built to tackle abrasive alloy metal drilling on hardened steel, alloys, titanium nitride coated material, and stainless steel.
- Precise Drilling: 135° split-point tip eliminates walking for accurate hole placement.
- Sturdy Web Construction: Reinforced web design adds strength for demanding drilling tasks.
- Straight Shank: Straight shank design for standard chuck compatibility.
- Finish: Gold oxide coated finish for added surface durability.
Technical Specifications
- Warranty: None
- Bit Type: Cobalt Jobber
- Claims Needed: No
- Individual Vs. Set (Syndigo): INDIVIDUAL
- Country of Origin: CHN
- Battery Included: No
- Power Source: NON-ENERGY USING
Typical Applications
- Drilling Hardened Steel and Alloys
- Metal Fabrication and Machining
- Titanium Nitride Coated Material Drilling
- Stainless Steel Drilling
- Heavy-Duty Industrial and Shop Applications
Why Irwin?
Irwin engineers the 30160 Series cobalt alloy steel jobber-length bits with sturdy web construction and a 135° split-point tip to deliver dependable performance on hardened steel, alloys, titanium nitride coated material, and stainless steel. The gold oxide finish, combined with heat-and-abrasion-resistant cobalt alloy steel construction, makes the 3016033 and its 30160 Series counterparts, including models 3016018, 3016020, and 3016022, a reliable choice for professionals and DIYers tackling demanding metal-drilling tasks that call for precision and durability.
Manufacturer Resources
Product Specs
- Bit Type:
- Cobalt Jobber
- Claims Needed:
- No
- Individual Vs. Set (Syndigo):
- INDIVIDUAL
- Product Material Group:
- METAL
- Country of Origin:
- China
- Battery Included:
- No
- Product Primary Material:
- Cobalt Alloy Steel
- Power Source:
- NON-ENERGY USING
- Coating:
- Gold Oxide
- list_batch:
- IRW-20260923
- Product Type:
- Drill Bit
- Product Finish:
- Gold Oxide
- Series:
- 30160 Series
- Department:
- Electrical
- Product Subgroup:
- Hole Saws & Bits
- Product Material:
- Cobalt Alloy Steel
- Product Size:
- 5/16 In.
- Product Width:
- 1.9 inches