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OSG 9/16"-18 UNF Spiral-Flute Tap, H3 / 2B-3B, 4 Flute, Bottoming Chamfer - Spiral-Flute Taps for Steel & Stainless Steel
OSGSpiral-Flute Taps for Steel & Stainless Steel

OSG 9/16"-18 UNF Spiral-Flute Tap, H3 / 2B-3B, 4 Flute, Bottoming Chamfer

OSG Spiral-Flute Taps for Steel & Stainless Steel.

SKU 3G-OTH-217886

Brand
OSG
Item
9/16"-18 UNF Spiral-Flute Tap, H3 / 2B-3B, 4 Flute, Bottoming Chamfer
Category
Spiral-Flute Taps for Steel & Stainless Steel
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Technical Specifications

OSG
Manufacturer Part Number
0139101

Technical Documents

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OSG Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

OSG Spiral-Flute Taps for Steel & Stainless Steel.

Frequently Asked Questions

What is the OSG spiral flute tap 0139101 used for?

The OSG spiral flute tap 0139101 is designed for threading blind holes in steel and stainless steel. Its spiral flute design evacuates chips upward, preventing clogging, making it ideal for CNC and manual tapping operations in automotive, aerospace, and general manufacturing.

What are the specifications of the OSG 0139101 tap?

This OSG tap has a 9/16"-18 UNF thread size, H3 / 2B-3B tolerance, 4 flutes, and a bottoming chamfer. It is a spiral flute tap for steel and stainless steel, with manufacturer part number 0139101. The H3 limit ensures precise thread fit for high-accuracy applications.

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 times on the OSG 0139101 spiral flute tap.

How to select the right OSG tap for steel?

For steel, choose a spiral flute tap like the OSG 0139101 for blind holes, as it clears chips upward. Match thread size (9/16"-18 UNF), chamfer type (bottoming for through holes), and tolerance (H3 / 2B-3B) to your application. Consult OSG's technical data for material-specific speeds and feeds.

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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Compatible alternatives & equivalents

Cross-referenced by specification & description
OSG Spiral Flute Tap: 7/16"-20 UNF, H3 / 2B-3B, 3 Flute, Bottoming Chamfer (MPN 0138401)
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OSG Spiral Flute Tap: 7/16"-20 UNF, H3 / 2B-3B, 3 Flute, Bottoming Chamfer (MPN 0138401)
OSG Spiral Flute Tap: 7/16"-14 UNC, H3 / 2B-3B, 3 Flute, Bottoming Chamfer (MPN 0138301)
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OSG Spiral Flute Tap: 7/16"-14 UNC, H3 / 2B-3B, 3 Flute, Bottoming Chamfer (MPN 0138301)
OSG Spiral Flute Tap: 1/2"-20 UNF, H3 / 2B-3B, 3 Flute, Bottoming Chamfer (MPN 0138801)
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OSG Spiral Flute Tap: 1/2"-20 UNF, H3 / 2B-3B, 3 Flute, Bottoming Chamfer (MPN 0138801)
OSG Spiral Flute Tap: 3/8"-24 UNF, H4 / 2B-3B, 3 Flute, Bottoming Chamfer (MPN 0138201)
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OSG Spiral Flute Tap: 3/8"-24 UNF, H4 / 2B-3B, 3 Flute, Bottoming Chamfer (MPN 0138201)
OSG Spiral Flute Tap: 1/2"-13 UNC, H3 / 2B-3B, 3 Flute, Bottoming Chamfer (MPN 0138601)
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OSG Spiral Flute Tap: 1/2"-13 UNC, H3 / 2B-3B, 3 Flute, Bottoming Chamfer (MPN 0138601)
OSG Spiral Flute Tap: 9/16"-18 UNF, H3 / 2B-3B, 4 Flute, Modified Bottoming Chamfer (MPN 1726108)
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OSG Spiral Flute Tap: 9/16"-18 UNF, H3 / 2B-3B, 4 Flute, Modified Bottoming Chamfer (MPN 1726108)

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