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

OSG Straight Flute Tap: 5/8"-18 UNF, 2B+, 4 Flute, Plug Chamfer

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
Straight Flute Tap: 5/8"-18 UNF, 2B+, 4 Flute, Plug Chamfer
Category
Oversized Hand Taps
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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
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 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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