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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 1645058113) is a 3-flute, modified bottoming chamfer tap with H3 / 2B-3B tolerance, designed for threading steel and stainless steel. 3G Electric interprets your demand…

SKU 3G-OTH-217898

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
1645058113
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 1645058113) is a 3-flute, modified bottoming chamfer tap with H3 / 2B-3B tolerance, designed for threading steel and stainless steel. 3G Electric interprets your demand, sources this genuine OSG tap, and provides a quote with expert support across 14 industrial departments — with specialist depth in combustion, pumps, and controls as an authorised distributor.

Frequently Asked Questions

What is the OSG spiral flute tap 5/8"-11 UNC used for?

The OSG spiral flute tap is designed for threading blind holes in steel and stainless steel. Its spiral flute design lifts chips upward, preventing clogging in deep or blind-hole applications. It is commonly used in automotive, aerospace, and general manufacturing for creating internal UNC threads.

What are the specifications of the OSG spiral flute tap 5/8"-11 UNC?

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

Where to buy the OSG spiral flute tap 5/8"-11 UNC worldwide?

You can source the OSG spiral flute tap 5/8"-11 UNC from 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations. Contact us for availability and lead time.

How to select the correct OSG spiral flute tap for steel?

Select an OSG spiral flute tap based on thread size (e.g., 5/8"-11 UNC), material (steel or stainless steel), and hole type (blind or through). For blind holes, use a spiral flute tap with a modified bottoming chamfer. Ensure the tap tolerance (H3) matches the required thread class (2B or 3B).

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. The spiral flute design evacuates chips upward to prevent clogging. Modified bottoming chamfer allows threading close to the hole bottom. Tolerance class H3 / 2B-3B. 3 flutes
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