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OSG Spiral Flute Tap: 1"-20 UNEF, H5 / 2B-3B, 4 Flute - Spiral-Flute Taps for Steel & Stainless Steel
OSGSpiral-Flute Taps for Steel & Stainless Steel

OSG Spiral Flute Tap: 1"-20 UNEF, H5 / 2B-3B, 4 Flute

The OSG Spiral Flute Tap (1"-20 UNEF) is a spiral-flute tap for steel and stainless steel, featuring an H5 / 2B-3B tolerance with a modified bottoming chamfer and 4 flutes (MPN 1650506908). 3G Electric interprets…

SKU 3G-OTH-217929

Brand
OSG
Item
Spiral Flute Tap: 1"-20 UNEF, H5 / 2B-3B, 4 Flute
Category
Spiral-Flute Taps for Steel & Stainless Steel
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Technical Specifications

OSG
Manufacturer Part Number
1650506908
Type
H5 / 2B-3B, Modified Bottoming Chamfer
Flute
4
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OSG Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The OSG Spiral Flute Tap (1"-20 UNEF) is a spiral-flute tap for steel and stainless steel, featuring an H5 / 2B-3B tolerance with a modified bottoming chamfer and 4 flutes (MPN 1650506908). 3G Electric interprets this demand and sources the genuine OSG tool, backed by specialist expertise across 14 industrial departments — and we supply far more than is listed.

Frequently Asked Questions

What is the OSG spiral flute tap used for?

The OSG spiral flute tap is designed for threading blind holes in steel and stainless steel. Its spiral flute design evacuates chips upward, preventing clogging and enabling efficient, clean threading in deep or blind applications.

What are the specifications of the OSG spiral flute tap?

This OSG tap has a thread size of 1"-20 UNEF, with an H5 tolerance for 2B-3B class threads. It features 4 flutes and a modified bottoming chamfer. The manufacturer part number is 1650506908.

Where to buy the OSG spiral flute tap worldwide?

You can source the OSG spiral flute tap through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations, ensuring reliable supply for your operations.

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

Select based on thread size, pitch, and material. For steel and stainless steel, use a spiral flute tap with appropriate flute count and chamfer. OSG taps are engineered for precision; verify the H5 tolerance matches your required thread class (2B-3B).

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-flute 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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