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OSG Spiral Point Tap: #4-40 UNC, H2 / 2B-3B, 2 Flute - Spiral-Point Taps for Steel & Stainless Steel
OSGSpiral-Point Taps for Steel & Stainless Steel

OSG Spiral Point Tap: #4-40 UNC, H2 / 2B-3B, 2 Flute

SKU 3G-OTH-223906

Brand
OSG
Item
Spiral Point Tap: #4-40 UNC, H2 / 2B-3B, 2 Flute
Category
Spiral-Point Taps for Steel & Stainless Steel
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Technical Specifications

OSG
Manufacturer Part Number
1730005
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OSG Products
3G Electric (S) Pte. Ltd. — Singapore

Frequently Asked Questions

What is OSG spiral point tap #4-40 UNC used for?

OSG spiral point taps are designed for threading through-holes in steel and stainless steel. The #4-40 UNC size with plug chamfer and 2-flute design pushes chips forward, making it ideal for production tapping in automotive, aerospace, and general manufacturing applications.

What are the specifications of OSG tap 1730005?

The OSG spiral point tap MPN 1730005 is #4-40 UNC thread size, H2 / 2B-3B tolerance, with 2 flutes and a plug chamfer. It is designed for tapping steel and stainless steel, providing reliable chip evacuation and thread accuracy in through-hole applications.

Where to buy OSG spiral point tap #4-40 UNC worldwide?

3G Electric supplies OSG spiral point taps like the #4-40 UNC (MPN 1730005) to customers worldwide. We handle full logistics, customs clearance, and delivery to your facility, ensuring you receive genuine OSG cutting tools for your threading operations.

How to select the right spiral point tap for steel?

For steel and stainless steel, choose a spiral point tap with a plug chamfer and H2 tolerance for through-holes. Match thread size (e.g., #4-40 UNC) and flute count to material hardness. OSG taps like the 1730005 are engineered for chip control and long tool life in production environments.

Used in

Common applications for OSG
Automotive engine block production — OSG micro drill bits for oil gallery and coolant passage drilling in cast iron
Medical device manufacturing — OSG micro drill bits for drilling bone screw pilot holes in stainless steel implants
Aerospace component machining — OSG micro drill bits for fastener holes in titanium alloy structural parts
Mold and die making — OSG micro drill bits for cooling channel drilling in hardened tool steel (HRC 45-50)
Electronics enclosure fabrication — OSG micro drill bits for precision holes in aluminum alloy housings (with appropriate coating selection)
General engineering job shops — OSG micro drill bits for small-diameter hole drilling in mild steel and alloy steel parts

OSG Products

3G Electric supplies OSG spiral-point taps for steel & stainless steel. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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