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OSG Spiral-Flute Tap, 5/8"-18 UNF, H3 / 2B-3B, 4 Flute, Bottoming Chamfer - Spiral-Flute Taps for Steel & Stainless Steel
OSGSpiral-Flute Taps for Steel & Stainless Steel

OSG Spiral-Flute Tap, 5/8"-18 UNF, H3 / 2B-3B, 4 Flute, Bottoming Chamfer

OSG Spiral-Flute Taps for Steel & Stainless Steel.

SKU 3G-OTH-217903

Brand
OSG
Item
Spiral-Flute Tap, 5/8"-18 UNF, 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
0139408

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 5/8"-18 UNF used for?

This OSG spiral flute tap is designed for threading blind holes in steel and stainless steel. Its 4-flute, bottoming chamfer design efficiently evacuates chips upward, making it ideal for CNC and manual tapping operations where chip clearance is critical.

What are the specifications of the OSG 0139408 tap?

The OSG 0139408 is a spiral flute tap with thread size 5/8"-18 UNF, H3 / 2B-3B tolerance, 4 flutes, and a bottoming chamfer. It is designed for threading steel and stainless steel, ensuring precise fit and finish in blind-hole applications.

Where to buy OSG taps in worldwide?

You can source OSG taps like the 0139408 through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide locations, ensuring you receive genuine OSG tooling for your threading operations.

How to select the correct OSG tap for steel threading?

Select an OSG tap based on thread size, pitch, and material. For blind holes in steel, use a spiral flute tap with bottoming chamfer, like the 5/8"-18 UNF H3 / 2B-3B. Ensure the tap matches your required thread class and hole depth for optimal chip evacuation and 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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Spiral-flute tap for threading blind holes in steel and stainless steel. Features 3 flutes and bottoming chamfer. Thread size 3/8"-24 UNF with H4 / 2B-3B thread limit. Chip evacuation upward prevents clogging in deep or blind hole applications

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