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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-223907

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
1734808
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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 chip clogging and enabling faster tapping. It is commonly used in automotive, aerospace, and general manufacturing applications requiring precise internal threads.

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, 2-flute design, and plug chamfer. It is a spiral-point tap for steel and stainless steel. The manufacturer part number is 1734808. These specs ensure accurate thread formation and compatibility with standard UNC threaded holes.

Where to buy OSG spiral point taps in worldwide?

You can source OSG spiral point taps worldwide through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead times. 3G Electric supplies genuine OSG cutting tools for industrial applications.

How to select the correct OSG spiral point tap for steel?

Select an OSG spiral point tap based on thread size, material, and hole type. For steel, use taps with H3 / 2B-3B tolerance and plug chamfer for through-holes. Ensure the tap matches the UNC thread standard. OSG taps are engineered for durability in steel and stainless steel, reducing breakage and improving thread quality.

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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