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OSG Spiral Flute Tap: 5/8"-11 UNC, H3 / 2B-3B, 3 Flute - Spiral-Flute Taps for Steel & Stainless Steel
OSGSpiral-Flute Taps for Steel & Stainless Steel

OSG Spiral Flute Tap: 5/8"-11 UNC, H3 / 2B-3B, 3 Flute

The OSG Spiral Flute Tap (5/8"-11 UNC, MPN 1749105) is a spiral-flute tap for steel and stainless steel, featuring an H3 / 2B-3B tolerance, 3 flutes, and a modified bottoming chamfer. 3G Electric interprets your…

SKU 3G-OTH-218545

Brand
OSG
Item
Spiral Flute Tap: 5/8"-11 UNC, H3 / 2B-3B, 3 Flute
Category
Spiral-Flute Taps for Steel & Stainless Steel
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Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Delivery
Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
Ships to
Singapore

Technical Specifications

OSG
Manufacturer Part Number
1749105
Type
H3 / 2B-3B, Modified Bottoming Chamfer
Flute
3

Technical Documents

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

Product Description

The OSG Spiral Flute Tap (5/8"-11 UNC, MPN 1749105) is a spiral-flute tap for steel and stainless steel, featuring an H3 / 2B-3B tolerance, 3 flutes, and a modified bottoming chamfer. 3G Electric interprets your demand for this specific threading tool, sourcing it from our global network across 14 industrial departments, with specialist depth in cutting tools and controls.

Frequently Asked Questions

What is an OSG spiral flute tap used for?

An OSG spiral flute tap is used for threading blind holes in steel and stainless steel. Its spiral design pushes 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 5/8-11 UNC?

This OSG tap has a 5/8-11 UNC thread, H3 / 2B-3B tolerance, 3 flutes, and a modified bottoming chamfer. It is designed for threading blind holes in steel and stainless steel. The H3 tolerance ensures precise fit for class 2B or 3B threads.

Where to buy OSG taps in worldwide?

3G Electric supplies OSG taps worldwide, including this 5/8-11 UNC spiral flute tap. We handle full logistics, customs clearance, and delivery to your facility. Contact us for availability and lead time. We source genuine OSG cutting tools for industrial customers globally.

How to select the right spiral flute tap for steel?

Select a spiral flute tap based on thread size, material, and hole type. For blind holes in steel, use a modified bottoming chamfer to thread close to the bottom. Match the tap tolerance (e.g., H3) to the required thread class (2B or 3B). OSG taps are engineered for consistent performance in production environments.

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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