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OSG Spiral Point Tap: #4-40 UNC, H3 / 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, H3 / 2B-3B, 2 Flute

SKU 3G-OTH-223908

Brand
OSG
Item
Spiral Point Tap: #4-40 UNC, H3 / 2B-3B, 2 Flute
Category
Spiral-Point Taps for Steel & Stainless Steel
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Technical Specifications

OSG
Manufacturer Part Number
1759101
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OSG Products
3G Electric (S) Pte. Ltd. — Singapore

Frequently Asked Questions

What is the OSG Spiral Point Tap #4-40 UNC used for?

The OSG Spiral Point Tap #4-40 UNC is designed for threading through-holes in steel and stainless steel. Its spiral-point design pushes chips forward, reducing clogging and breakage. It is commonly used in automotive, aerospace, and general manufacturing for creating precise internal threads in hard materials.

What are the specifications of the OSG Spiral Point Tap #4-40 UNC?

This OSG tap has a #4-40 UNC thread size, H3 / 2B-3B tolerance class, 2-flute design, and plug chamfer. The manufacturer part number is 1759101. It is a spiral-point tap optimized for steel and stainless steel, ensuring efficient chip evacuation and thread accuracy.

Where to buy OSG Spiral Point Tap #4-40 UNC worldwide?

You can source the OSG Spiral Point Tap #4-40 UNC worldwide through 3G Electric. As a global industrial distributor, 3G Electric handles full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time; we supply genuine OSG tooling to procurement teams globally.

How to select the correct OSG tap for steel threading?

For steel threading, choose a spiral-point tap like the OSG #4-40 UNC for through-holes. Ensure the tap matches the thread size, pitch, and tolerance class (e.g., H3 / 2B-3B). Use proper cutting fluid and rigid tapping equipment. OSG taps are engineered for durability in steel and stainless steel applications.

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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