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OSG 1/2"-13 UNC General Purpose Spiral-Flute Tap - General Purpose Spiral-Flute Taps
OSGGeneral Purpose Spiral-Flute Taps

OSG 1/2"-13 UNC General Purpose Spiral-Flute Tap

The OSG Spiral Flute Tap (1/2"-13 UNC) is a general-purpose spiral-flute tap with a 2B thread class, bottoming chamfer, and black oxide high-speed steel construction. It features 3 flutes and is identified by…

SKU 3G-OTH-230986

Brand
OSG
Item
1/2"-13 UNC General Purpose Spiral-Flute Tap
Part Number
2986201
Category
General Purpose Spiral-Flute Taps
Available to Order
Also known as:2986201OSG
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Technical Specifications

OSG
Manufacturer Part Number
2986201
Type
2B, Bottoming Chamfer, Black Oxide High Speed Steel
Flute
3

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

Product Description

The OSG Spiral Flute Tap (1/2"-13 UNC) is a general-purpose spiral-flute tap with a 2B thread class, bottoming chamfer, and black oxide high-speed steel construction. It features 3 flutes and is identified by manufacturer part number 2986201.

Frequently Asked Questions

What is the OSG spiral flute tap used for?

The OSG spiral flute tap is used for threading blind holes in metal, where chips must be evacuated upward. It is common in automotive, aerospace, and general machining applications. The 1/2"-13 UNC size suits standard coarse-thread fasteners.

What are the specifications of the OSG 2986201 tap?

The OSG 2986201 is a 1/2"-13 UNC spiral flute tap with a 2B class of fit, 3 flutes, bottoming chamfer, and black oxide high-speed steel construction. It is designed for threading blind holes in ferrous materials.

Where to buy OSG taps in worldwide?

3G Electric supplies OSG taps worldwide, handling logistics and customs clearance for international orders. As a global industrial solutions provider, we source genuine OSG cutting tools and deliver them to your facility, regardless of location.

How to select the right OSG tap for blind holes?

For blind holes, choose a spiral flute tap like the OSG 2986201 to pull chips upward. Match the thread size (1/2"-13 UNC), chamfer type (bottoming for full threads near hole bottom), and material (black oxide HSS for steel). Consult OSG's technical data for optimal speeds and feeds.

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 general purpose spiral-flute taps. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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