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

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

The OSG Spiral Flute Tap (1/4"-28 UNF, MPN 0142808) is a bottoming-chamfer, 3-flute tap made from V-coated powdered metal, rated H4 / 2B-3B. Designed for threading steel and stainless steel, it is supplied by 3G…

SKU 3G-OTH-218780

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

OSG
Manufacturer Part Number
0142808
Type
H4 / 2B-3B, Bottoming Chamfer, V Coated Powdered Metal
Flute
3
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OSG Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The OSG Spiral Flute Tap (1/4"-28 UNF, MPN 0142808) is a bottoming-chamfer, 3-flute tap made from V-coated powdered metal, rated H4 / 2B-3B. Designed for threading steel and stainless steel, it is supplied by 3G Electric across 14 industrial departments, with specialist depth in cutting tools and precision machining.

Frequently Asked Questions

What is OSG spiral flute tap 0142808 used for?

The OSG spiral flute tap 0142808 is designed for threading blind holes in steel and stainless steel. Its spiral flute design evacuates chips upward, preventing clogging. The V coating and powdered metal construction provide wear resistance for production tapping. It is commonly used in automotive, aerospace, and general manufacturing.

What are the specifications of OSG tap 0142808?

The OSG tap 0142808 has a thread size of 1/4"-28 UNF, with a tolerance of H4 / 2B-3B. It features 3 flutes, a bottoming chamfer, and a V coating on powdered metal. This spiral flute tap is designed for threading blind holes in steel and stainless steel.

Where to buy OSG spiral flute tap 0142808 worldwide?

You can source the OSG spiral flute tap 0142808 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 on this and other OSG taps.

How to select the right OSG tap for stainless steel?

For stainless steel, choose a tap with a spiral flute design to evacuate chips, a V or TiCN coating for heat resistance, and a powdered metal substrate for toughness. The OSG 0142808 meets these criteria with its 1/4"-28 UNF thread, H4 tolerance, and bottoming chamfer for blind holes.

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-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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