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OSG Spiral Flute Tap: 1 5/8"-8 UNS, H10 / 2B-3B, 4 Flute - Spiral-Flute Taps for Steel & Stainless Steel
OSGSpiral-Flute Taps for Steel & Stainless Steel

OSG Spiral Flute Tap: 1 5/8"-8 UNS, H10 / 2B-3B, 4 Flute

The OSG Spiral Flute Tap (1 5/8"-8 UNS, MPN 1650508308) is a spiral-flute tap for steel and stainless steel, featuring a modified bottoming chamfer, 4 flutes, and H10 / 2B-3B tolerance class. 3G Electric interprets…

SKU 3G-OTH-217935

Brand
OSG
Item
Spiral Flute Tap: 1 5/8"-8 UNS, H10 / 2B-3B, 4 Flute
Category
Spiral-Flute Taps for Steel & Stainless Steel
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Technical Specifications

OSG
Manufacturer Part Number
1650508308
Type
H10 / 2B-3B, Modified Bottoming Chamfer
Flute
4
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OSG Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The OSG Spiral Flute Tap (1 5/8"-8 UNS, MPN 1650508308) is a spiral-flute tap for steel and stainless steel, featuring a modified bottoming chamfer, 4 flutes, and H10 / 2B-3B tolerance class. 3G Electric interprets your demand, sources this genuine OSG tap, and provides a quote with dedicated 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 1 5/8"-8 UNS used for?

This OSG spiral flute tap is designed for threading steel and stainless steel. The spiral flute design evacuates chips upward, making it ideal for blind-hole applications. The modified bottoming chamfer allows threading close to the bottom of the hole. It is commonly used in industrial manufacturing and maintenance operations.

What are the specifications of the OSG spiral flute tap 1 5/8"-8 UNS?

This OSG tap has a thread size of 1 5/8"-8 UNS, with a H10 / 2B-3B tolerance class. It features 4 flutes and a modified bottoming chamfer. The manufacturer part number is 1650508308. It is designed for threading steel and stainless steel in blind-hole applications.

Where to buy the OSG spiral flute tap 1 5/8"-8 UNS worldwide?

3G Electric supplies this OSG spiral flute tap worldwide. As a global industrial equipment distributor since 1990, we handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time. We source and deliver this tap to support your threading operations.

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

Select an OSG spiral flute tap based on thread size, tolerance class, and material. For steel and stainless steel, use a tap with a modified bottoming chamfer for blind holes. Ensure the tap's H10 / 2B-3B tolerance matches your required thread fit. Always match the tap to the specific material and hole type 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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