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OSG Oversized Hand Tap: 5/8"-18 UNF, 2B+, Plug Chamfer, Black Oxide HSS, 4 Flute - Oversized Hand Taps
OSGOversized Hand Taps

OSG Oversized Hand Tap: 5/8"-18 UNF, 2B+, Plug Chamfer, Black Oxide HSS, 4 Flute

The OSG Straight Flute Tap (5/8"-18 UNF) is an oversized hand tap with a 2B+ tolerance, plug chamfer, and black oxide high-speed steel construction. It features 4 flutes and is identified by manufacturer part number…

SKU 3G-OTH-272778

Brand
OSG
Item
Oversized Hand Tap: 5/8"-18 UNF, 2B+, Plug Chamfer, Black Oxide HSS, 4 Flute
Part Number
1125901
Category
Oversized Hand Taps
Available to Order
Also known as:1125901OSG
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Technical Specifications

OSG
Manufacturer Part Number
1125901
Type
2B+, Plug Chamfer, Black Oxide High Speed Steel
Flute
4

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

Product Description

The OSG Straight Flute Tap (5/8"-18 UNF) is an oversized hand tap with a 2B+ tolerance, plug chamfer, and black oxide high-speed steel construction. It features 4 flutes and is identified by manufacturer part number 1125901.

Frequently Asked Questions

What is the OSG Straight Flute Tap 1125901 used for?

The OSG Straight Flute Tap 1125901 is used for cutting internal threads in metal components. It is ideal for through-hole or blind-hole tapping in production and maintenance applications, particularly where a slightly oversized thread is required for fit or coating allowance.

What are the specifications of the OSG Straight Flute Tap 1125901?

The OSG Straight Flute Tap has a thread size of 5/8"-18 UNF, a 2B+ tolerance class, 4 flutes, a plug chamfer, and a black oxide high-speed steel construction. The manufacturer part number is 1125901. It is designed for oversized threading applications.

Where to buy the OSG Straight Flute Tap 1125901 worldwide?

You can source the OSG Straight Flute Tap 1125901 through 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 Straight Flute Tap for UNF threads?

To select the correct OSG Straight Flute Tap, match the thread size (e.g., 5/8"-18 UNF) and tolerance class (e.g., 2B+) to your application. For oversized threads, use taps marked with a plus sign. Ensure the tap material (e.g., HSS) suits the workpiece hardness. Consult OSG's technical data for guidance.

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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