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OSG Spiral Flute Tap: 2"-4.5 UNC, H12 / 2B-3B, 4 Flute - Oversized Spiral-Flute Taps for Steel & Stainless Steel
OSGOversized Spiral-Flute Taps for Steel & Stainless Steel

OSG Spiral Flute Tap: 2"-4.5 UNC, H12 / 2B-3B, 4 Flute

The OSG Spiral Flute Tap (SKU 54MG31) is an oversized spiral-flute tap for steel and stainless steel, with a 2"-4.5 UNC thread size. It features a modified bottoming chamfer, 4 flutes, and H12 / 2B-3B tolerance class…

SKU 3G-OTH-213025

Brand
OSG
Item
Spiral Flute Tap: 2"-4.5 UNC, H12 / 2B-3B, 4 Flute
Category
Oversized Spiral-Flute Taps for Steel & Stainless Steel
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Technical Specifications

OSG
Manufacturer Part Number
1650508708
Type
H12 / 2B-3B, Modified Bottoming Chamfer
Flute
4
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OSG Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The OSG Spiral Flute Tap (SKU 54MG31) is an oversized spiral-flute tap for steel and stainless steel, with a 2"-4.5 UNC thread size. It features a modified bottoming chamfer, 4 flutes, and H12 / 2B-3B tolerance class (MPN 1650508708). 3G Electric interprets demand and sources this genuine OSG tap across 14 industrial departments, with specialist depth in combustion, pumps, and controls as an authorised distributor.

Frequently Asked Questions

What is the OSG spiral flute tap 1650508708 used for?

This OSG spiral flute tap is designed for threading steel and stainless steel. Its oversized H12 / 2B-3B tolerance and modified bottoming chamfer make it suitable for producing precise internal threads in tough materials, commonly used in industrial manufacturing and maintenance applications.

What are the specifications of the OSG tap 1650508708?

The OSG tap has a 2"-4.5 UNC thread size, H12 / 2B-3B tolerance, 4 flutes, and a modified bottoming chamfer. It is an oversized spiral flute tap for steel and stainless steel, with manufacturer part number 1650508708. These specs ensure accurate threading in demanding materials.

Where to buy OSG taps in worldwide?

You can source OSG taps like the 1650508708 through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide locations, ensuring you receive genuine OSG products for your threading applications.

How to select the right OSG tap for steel threading?

Select an OSG tap based on thread size, tolerance, and material. For steel and stainless steel, use a spiral flute tap with a modified bottoming chamfer, like the 2"-4.5 UNC H12 / 2B-3B model. Ensure the tap matches your required thread class and hole depth for optimal 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 oversized spiral-flute taps for steel & stainless steel. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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