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OSG Spiral Point Tap: 1/4"-28 UNF, H4 / 2B-3B, 3 Flute, Plug Chamfer - General Purpose Spiral-Point Taps
OSGGeneral Purpose Spiral-Point Taps

OSG Spiral Point Tap: 1/4"-28 UNF, H4 / 2B-3B, 3 Flute, Plug Chamfer

The OSG Spiral Point Tap (1/4"-28 UNF) is a general-purpose spiral-point tap with a plug chamfer, made from high-speed steel. It features 3 flutes and is rated H4 / 2B-3B (MPN 1235600).

SKU 3G-OTH-214963

Brand
OSG
Item
Spiral Point Tap: 1/4"-28 UNF, H4 / 2B-3B, 3 Flute, Plug Chamfer
Category
General Purpose Spiral-Point Taps
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Technical Specifications

OSG
Manufacturer Part Number
1235600
Type
H4 / 2B-3B, Plug Chamfer, High Speed Steel
Flute
3
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OSG Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The OSG Spiral Point Tap (1/4"-28 UNF) is a general-purpose spiral-point tap with a plug chamfer, made from high-speed steel. It features 3 flutes and is rated H4 / 2B-3B (MPN 1235600).

Frequently Asked Questions

What is the OSG Spiral Point Tap 1/4"-28 UNF used for?

The OSG Spiral Point Tap is used for threading blind or through holes in ferrous and non-ferrous materials. Its spiral-point design pushes chips ahead, reducing clogging. It is ideal for general-purpose tapping in manufacturing and maintenance applications requiring UNF threads.

What are the specifications of the OSG Spiral Point Tap 1/4"-28 UNF?

This OSG tap has a 1/4"-28 UNF thread size, H4 / 2B-3B tolerance, 3 flutes, plug chamfer, and is made of high-speed steel. The manufacturer part number is 1235600. It is designed for general-purpose tapping with a spiral-point geometry for chip evacuation.

Where to buy the OSG Spiral Point Tap 1/4"-28 UNF worldwide?

You can source the OSG Spiral Point Tap 1/4"-28 UNF 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 Spiral Point Tap for UNF threads?

Select the tap based on thread size (e.g., 1/4"-28 UNF), tolerance class (H4 / 2B-3B), and material. For blind holes, a spiral-point tap pushes chips forward. Ensure the tap matches the required chamfer (plug) and flute count (3). OSG taps are precision-ground for consistent performance.

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

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