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Achieve Precision Drilling with IRWIN Unibit #3
The IRWIN Unibit #3 step drill bit, imported from authorized US retailers, is engineered for precision metalworking. Its 1/4-inch to 3/4-inch range and 3/8-inch shank provide versatility for various drilling tasks. The SpeedPoint tip ensures faster, walk-free penetration, while the single-flute cutting edge guarantees true round holes and enhanced control. This bit is ideal for drilling thin materials including stainless steel, copper, brass, aluminum, and plastics, making it a reliable tool for professionals and serious DIYers in India.
Constructed from high-speed steel, this step drill bit offers durability for repeated use. The patented single-flute design minimizes chatter and allows for greater control as you step through different hole sizes. The 3-flatted shank securely grips in standard drill chucks, preventing slippage and ensuring consistent performance. Its ability to create clean, precise holes makes it superior to standard twist drills for many applications, especially when starting a hole on smooth surfaces.
For Indian customers, importing this IRWIN Unibit ensures access to high-quality tooling that may not be readily available locally. All customs duties and GST are included in the listed price, with delivery via ExpressBox tracked shipping. Compare its precision and durability to local alternatives; this imported bit offers a reliable solution for accurate hole creation in demanding projects.
Engineered for Precision Metalworking
This IRWIN Unibit #3 step drill bit is crafted from high-speed steel for superior durability and performance. Its patented single-flute cutting edge and SpeedPoint tip are designed to penetrate faster and prevent walking, ensuring true round holes with greater control. The 3-flatted shank provides a secure grip in your drill chuck, minimizing slippage. Imported from authorized US retailers, this tool offers a level of precision and reliability often sought after for demanding metal and plastic fabrication tasks.
Ideal for Thin Materials, Not for Heavy-Duty Drilling
This step drill bit is best suited for drilling thin materials such as stainless steel, copper, brass, aluminum, plastic, and laminates up to 1/8-inch thick. It is not designed for heavy-duty drilling in thick metal or wood. If you require drilling large diameter holes in thick stock or need a bit for general wood drilling, consider a standard twist drill bit or a spade bit instead.
Typical situations where IRWIN Unibit #3 Step Drill Bit 1/4-Inch to 3/4-Inch helps — illustrative scenarios, not customer reviews.
A metal fabricator in Delhi needs to drill precise 1/4-inch pilot holes for mounting brackets on thin stainless steel sheets.
The IRWIN Unibit #3 step drill bit, with its SpeedPoint tip and single-flute design, ensures the hole starts exactly where intended without wandering on the thin steel. The 3/8-inch shank provides stability in the drill press, delivering clean, true round holes for secure bracket mounting.
A DIY enthusiast in Bangalore is working on a custom electronics project and needs to drill clean holes for components in thin plastic enclosures.
This IRWIN Unibit #3 step drill bit is perfect for drilling plastics. Its controlled cutting action prevents chipping and produces smooth, precise holes for mounting PCBs or connectors. The 1/4-inch to 3/4-inch range offers flexibility for various component sizes.
| Recommended Use | Drilling holes in thin materials: stainless steel, copper, brass, aluminum, plastic, laminates. |
| Application | Metalworking, DIY projects, electrical work, plumbing, sheet metal fabrication. |
| Chuck Compatibility | Fits standard 3/8-inch drill chucks. |
| Tool Life | Designed for durability with High-Speed Steel construction. |
| Feature | IRWIN Unibit #3 | Others |
|---|---|---|
| Material | High-Speed Steel (HSS) | Varies by brand; often HSS or Cobalt-HSS for imported, standard HSS for local |
| Cutting Edge | Patented Single Flute with SpeedPoint Tip | Typically standard multi-flute or single-flute, point style varies |
| Drilling Range | 1/4" - 3/4" (9 sizes) | Varies by model; local options may offer wider or narrower ranges |
| Shank Type | 3-Flatted 3/8-inch Round Shank | Standard round shank, size varies; some may lack flats |
| Precision & Control | High, due to single flute and SpeedPoint | Moderate to high, depending on brand quality and design |
| SKU | vvy7997 |
| GTIN | 00038548101033 |
| Brand | IRWIN |
| Model Number | 10233 |
| Item Name | Unibit #3 Step-Drill Bit |
| Pattern | Stepped |
| Material | High Speed Steel |
| Color | Black |
| Shank Diameter | 3/8-inch (9.53 mm) |
| Shank Type | 3-Flatted Round |
| Drilling Range | 1/4-inch to 3/4-inch (6.35 mm to 19.05 mm) |
| Hole Sizes | 9 sizes in 1/16-inch increments |
| Maximum Material Thickness | 1/8-inch (3.18 mm) |
| Cutting Edge | Single Flute |
| Point Style | SpeedPoint (118°) |
| Number of Flutes | 1 |
| Item Weight | 0.13 pounds (59 g) |
| Country of Origin | Manufactured in China |
About IRWIN
IRWIN Tools is renowned for its high-performance cutting tools, including drill bits and hole saws, designed for professional tradespeople and serious DIYers.
Compliance & Legal
No product-specific compliance warnings identified. Standard imported-goods terms apply: customs duties & GST paid; for personal use in India; follow the manufacturer's usage instructions on the packaging.
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This item:
IRWIN Unibit #3 Step Drill Bit 1/4-Inch to 3/4-Inch, 3/8-Inch Shank | Precision Spot Drilling for Metal & Plastic
7,690
This item
IRWIN Unibit #3 Step Drill Bit 1/4-Inch to 3/4-Inch, 3/8-Inch Shank | Precision Spot Drilling for Metal & Plastic
7,690
Total price:
12,950
You save 5,650 (30%) Extra3 items selected
3 items
12,950You save 5,650 (30%) Extra
| Attributes | Current |  |  |  |  |  |  |
|---|---|---|---|---|---|---|---|
| Spec | |||||||
| Price | 7,690 10,390 | 3,530 5,450 | 1,730 2,760 | 2,310 3,930 | 1,990 3,180 | 3,980 5,440 | 9,230 14,300 |
| Rating | 4.60(634) | 4.50(1,036) | 4.70(294) | 4.70(1,645) | 4.60(73) | 4.50(304) | 4.40(5,688) |
| Brand Name | IRWIN | Quartet | uxcell | ALKOO | SmartSign | GORILLA | Smart Weigh |
| Source | US Retail | US Retail | US Retail | US Retail | US Retail | US Retail | US Retail |
| Sold By | CrowCrowCrow | CrowCrowCrow | CrowCrowCrow | CrowCrowCrow | CrowCrowCrow | CrowCrowCrow | CrowCrowCrow |
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