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OSG Spiral Point Tap: 1/4"-28 UNF, H4 / 2B-3B, 3 Flute, Plug Chamfer - Spiral-Point Taps for Steel & Stainless Steel
OSGSpiral-Point Taps for Steel & Stainless Steel

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 spiral-point tap for steel and stainless steel, featuring a H4 / 2B-3B tolerance, plug chamfer, 3 flutes, and V coated powdered metal construction (MPN 1651501808). 3G…

SKU 3G-OTH-224029

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

OSG
Manufacturer Part Number
1651501808
Type
H4 / 2B-3B, Plug Chamfer, V Coated Powdered Metal
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 spiral-point tap for steel and stainless steel, featuring a H4 / 2B-3B tolerance, plug chamfer, 3 flutes, and V coated powdered metal construction (MPN 1651501808). 3G Electric interprets customer demand and delivers this genuine industrial cutting tool across 14 departments — with specialist depth in combustion, pumps and controls as an authorised distributor — ensuring you get the right answer, not just a catalog.

Frequently Asked Questions

What is an OSG spiral point tap used for?

An OSG spiral point tap is designed for through-hole threading in steel and stainless steel. Its spiral point pushes chips ahead, preventing clogging. The V coated powdered metal construction provides wear resistance for production threading in automotive, aerospace, and general manufacturing applications.

What are the specifications of the OSG 1/4"-28 UNF spiral point tap?

This OSG tap has a 1/4"-28 UNF thread, H4 / 2B-3B tolerance, 3 flutes, and a plug chamfer. It is made of V coated powdered metal. The manufacturer part number is 1651501808. It is intended for threading steel and stainless steel in through-hole applications.

Where to buy OSG taps in worldwide?

3G Electric supplies OSG taps worldwide, handling full logistics and customs clearance. As a global industrial sourcing partner, we provide genuine OSG cutting tools like this spiral point tap. Contact us for pricing and lead time on this and other OSG part numbers.

How to select the correct OSG tap for stainless steel?

For stainless steel, choose a tap with a V coating and powdered metal substrate like this OSG spiral point tap. Use a plug chamfer for through holes. Ensure the thread class (H4 / 2B-3B) matches your required fit. Proper cutting fluid and speed are essential for thread quality and tool life.

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 spiral-point 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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