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OSG Spiral Flute Tap: 5/16"-18 UNC, H3 / 2B-3B, 3 Flute - Spiral-Flute Taps for Steel & Stainless Steel
OSGSpiral-Flute Taps for Steel & Stainless Steel

OSG Spiral Flute Tap: 5/16"-18 UNC, H3 / 2B-3B, 3 Flute

SKU 3G-OTH-217824

Brand
OSG
Item
Spiral Flute Tap: 5/16"-18 UNC, H3 / 2B-3B, 3 Flute
Category
Spiral-Flute Taps for Steel & Stainless Steel
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Technical Specifications

OSG
Manufacturer Part Number
0137501
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OSG Products
3G Electric (S) Pte. Ltd. — Singapore

Frequently Asked Questions

What is an OSG spiral flute tap used for?

An OSG spiral flute tap is designed for threading blind holes in steel and stainless steel. Its spiral flute design pulls chips upward and out of the hole, preventing chip clogging and ensuring clean threads. This makes it ideal for automotive, aerospace, and general manufacturing applications.

What are the specifications of the OSG spiral flute tap 0137501?

The OSG spiral flute tap 0137501 has a thread size of 5/16"-18 UNC, with a thread tolerance of H3 / 2B-3B. It features 3 flutes and a bottoming chamfer, making it suitable for threading to the bottom of blind holes in steel and stainless steel.

Where to buy OSG spiral flute taps worldwide?

3G Electric supplies OSG spiral flute taps worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your facility. Contact us for pricing and lead time on this OSG 0137501 tap.

How to select the right OSG tap for steel?

For threading blind holes in steel, choose a spiral flute tap like the OSG 0137501. Ensure the thread size (5/16"-18 UNC), chamfer type (bottoming), and tolerance (H3 / 2B-3B) match your application. Use appropriate cutting fluid and speed for optimal thread quality and tool life.

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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