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OSG 15/16"-20 UNEF Spiral-Flute Tap - Spiral-Flute Taps for Steel & Stainless Steel
OSGSpiral-Flute Taps for Steel & Stainless Steel

OSG 15/16"-20 UNEF Spiral-Flute Tap

The OSG Spiral Flute Tap (15/16"-20 UNEF) is a spiral-flute tap for steel and stainless steel, featuring an H5 / 2B-3B tolerance, 4 flutes, and a modified bottoming chamfer (MPN 1650506808). 3G Electric interprets…

SKU 3G-OTH-218722

Brand
OSG
Item
15/16"-20 UNEF Spiral-Flute Tap
Part Number
1650506808
Category
Spiral-Flute Taps for Steel & Stainless Steel
Available to Order
Also known as:1650506808OSG
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Technical Specifications

OSG
Manufacturer Part Number
1650506808
Type
H5 / 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 (15/16"-20 UNEF) is a spiral-flute tap for steel and stainless steel, featuring an H5 / 2B-3B tolerance, 4 flutes, and a modified bottoming chamfer (MPN 1650506808). 3G Electric interprets this demand and sources the genuine OSG product, backed by specialist expertise across 14 industrial departments.

Frequently Asked Questions

What is the OSG spiral flute tap 1650506808 used for?

This OSG spiral flute tap is designed for threading steel and stainless steel. Its modified bottoming chamfer and 4-flute design efficiently evacuate chips upward, making it ideal for blind-hole threading in automotive, aerospace, and general manufacturing applications.

What are the specifications of the OSG spiral flute tap 1650506808?

This tap has a thread size of 15/16"-20 UNEF, with an H5 tolerance for 2B-3B class fit. It features 4 flutes and a modified bottoming chamfer. The manufacturer part number is 1650506808. It is designed for use in steel and stainless steel materials.

Where to buy the OSG spiral flute tap 1650506808 worldwide?

You can source the OSG spiral flute tap 1650506808 through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations, ensuring you receive the correct OSG tap for your threading operations.

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

Select an OSG spiral flute tap based on thread size, pitch, and material. For steel and stainless steel, use taps with H5 tolerance for precise 2B-3B fits. The modified bottoming chamfer on this 15/16"-20 UNEF tap allows threading close to the bottom of blind holes. Always match tap geometry to your workpiece hardness.

Used in

Common applications for OSG
Aerospace — OSG STI taps for installing helical wire thread inserts in aluminum components
Automotive — OSG spiral-point taps for through-hole threading in engine blocks and transmission cases
General machining — OSG spiral-flute taps for blind-hole threading in steel and stainless steel parts
Heavy equipment repair — OSG thread-forming taps for creating threads in ductile iron and steel castings
Precision manufacturing — OSG solid carbide chucking reamers for finishing holes in hydraulic manifolds
Die and mold — OSG coolant-through solid carbide drills for deep-hole drilling in tool steels
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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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