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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-223904

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
1730008
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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?

This OSG spiral point tap is designed for threading blind or through holes in steel and stainless steel. Its spiral point design pushes chips forward, reducing clogging and enabling faster production in CNC and manual tapping applications.

What are the specifications of OSG tap 1730008?

The OSG 1730008 is a #4-40 UNC spiral point tap with H2 / 2B-3B tolerance, 2 flutes, and a plug chamfer. It is intended for threading steel and stainless steel. The H2 limit ensures precise thread fit for class 2B and 3B applications.

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

3G Electric supplies and delivers the OSG 1730008 spiral point tap worldwide. We handle full logistics and customs clearance, ensuring you receive genuine OSG tooling for your threading operations, regardless of your location.

How to select the right spiral point tap for steel?

For steel, choose a spiral point tap with a plug chamfer and H2 or H3 tolerance for general-purpose threading. Match the tap size and thread pitch to your hole specifications. OSG taps like the #4-40 UNC are engineered for chip evacuation in blind holes.

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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