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OSG Oversized Hand Tap 1/4"-28 UNF 2B+ Plug Chamfer HSS 4 Flute - Oversized Hand Taps
OSGOversized Hand Taps

OSG Oversized Hand Tap 1/4"-28 UNF 2B+ Plug Chamfer HSS 4 Flute

The OSG Straight Flute Tap (MPN 1590300) is an oversized hand tap with a 1/4"-28 UNF thread, designed as a 2B+ tolerance, plug chamfer, high-speed steel tool with 4 flutes. 3G Electric interprets this demand and…

SKU 3G-OTH-272782

Brand
OSG
Item
Oversized Hand Tap 1/4"-28 UNF 2B+ Plug Chamfer HSS 4 Flute
Part Number
1590300
Category
Oversized Hand Taps
Available to Order
Also known as:1590300OSG
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Technical Specifications

OSG
Manufacturer Part Number
1590300
Type
2B+, Plug Chamfer, High Speed Steel
Flute
4

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

Product Description

The OSG Straight Flute Tap (MPN 1590300) is an oversized hand tap with a 1/4"-28 UNF thread, designed as a 2B+ tolerance, plug chamfer, high-speed steel tool with 4 flutes. 3G Electric interprets this demand and sources the genuine OSG product, providing it across 14 industrial departments—with specialist depth in combustion, pumps, and controls as an authorized distributor for brands like FBR, Interpump, and others.

Frequently Asked Questions

What is the OSG Straight Flute Tap 1/4"-28 UNF used for?

This OSG tap is used for threading internal threads in metal components, specifically for 1/4"-28 UNF applications. It is ideal for precision machining in automotive, aerospace, and general manufacturing where tight tolerances and clean thread profiles are required.

What are the specifications of the OSG Straight Flute Tap 1/4"-28 UNF?

This OSG tap has a 1/4"-28 UNF thread size, 2B+ tolerance, 4 flutes, plug chamfer, and is made from high-speed steel. The manufacturer part number is 1590300. It is an oversized hand tap designed for creating threads in ferrous and non-ferrous materials.

Where to buy the OSG Straight Flute Tap 1/4"-28 UNF worldwide?

You can source the OSG Straight Flute Tap 1/4"-28 UNF from 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations, ensuring your order arrives reliably. Contact us for availability and lead times.

How to select the correct OSG tap for UNF threads?

To select the correct OSG tap, match the thread size (e.g., 1/4"-28 UNF) and tolerance class (e.g., 2B+) to your application. Consider material type and tap style—straight flute taps are suitable for through holes. OSG high-speed steel taps offer durability for general-purpose threading.

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

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