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OSG Spiral Flute Tap: 9/16"-12 UNC, H3 / 2B-3B, 4 Flute - Spiral-Flute Taps for Steel & Stainless Steel
OSGSpiral-Flute Taps for Steel & Stainless Steel

OSG Spiral Flute Tap: 9/16"-12 UNC, H3 / 2B-3B, 4 Flute

SKU 3G-OTH-217882

Brand
OSG
Item
Spiral Flute Tap: 9/16"-12 UNC, H3 / 2B-3B, 4 Flute
Category
Spiral-Flute Taps for Steel & Stainless Steel
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Technical Specifications

OSG
Manufacturer Part Number
0139008
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OSG Products
3G Electric (S) Pte. Ltd. — Singapore

Frequently Asked Questions

What is the OSG spiral flute tap 0139008 used for?

The OSG spiral flute tap 0139008 is designed for threading blind holes in steel and stainless steel. Its spiral flute design evacuates chips upward, preventing clogging, making it ideal for production tapping in automotive, aerospace, and general manufacturing applications.

What are the specifications of the OSG 0139008 tap?

The OSG 0139008 is a spiral flute tap with size 9/16"-12 UNC, H3 / 2B-3B tolerance, 4 flutes, and a bottoming chamfer. It is designed for threading steel and stainless steel. The manufacturer part number is 0139008.

Where to buy OSG taps in worldwide?

You can source OSG 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 time on the OSG 0139008 spiral flute tap.

How to select the correct OSG tap for steel?

For steel, select an OSG spiral flute tap with a bottoming chamfer for blind holes. Ensure the thread size (e.g., 9/16"-12 UNC) and tolerance class (H3 / 2B-3B) match your application. Use appropriate cutting fluid and follow OSG's speed/feed recommendations for optimal 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-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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