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OSG Spiral Flute Tap: #4-48 UNF, H2 / 2B-3B, 3 Flute - Spiral-Flute Taps for Steel & Stainless Steel
OSGSpiral-Flute Taps for Steel & Stainless Steel

OSG Spiral Flute Tap: #4-48 UNF, H2 / 2B-3B, 3 Flute

SKU 3G-OTH-219104

Brand
OSG
Item
Spiral Flute Tap: #4-48 UNF, H2 / 2B-3B, 3 Flute
Category
Spiral-Flute Taps for Steel & Stainless Steel
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Technical Specifications

OSG
Manufacturer Part Number
0135808
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OSG Products
3G Electric (S) Pte. Ltd. — Singapore

Frequently Asked Questions

What is OSG spiral flute tap #4-48 UNF used for?

This OSG spiral flute tap is designed for threading #4-48 UNF holes in steel and stainless steel. Its spiral flute design efficiently evacuates chips upward, making it ideal for blind-hole threading in industrial machining, tooling, and precision manufacturing applications.

What are the specifications of OSG spiral flute tap #4-48 UNF?

The OSG spiral flute tap has a #4-48 UNF thread size, H2 / 2B-3B tolerance, 3 flutes, and a bottoming chamfer. It is designed for threading steel and stainless steel. The manufacturer part number is 0135808.

Where to buy OSG spiral flute tap #4-48 UNF worldwide?

3G Electric supplies the OSG spiral flute tap #4-48 UNF worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your location. Contact us to source this genuine OSG tap for your threading needs.

How to select the right spiral flute tap for steel?

For threading steel, select a spiral flute tap with a bottoming chamfer for blind holes, like this OSG #4-48 UNF tap. Ensure the thread size, pitch, and tolerance (H2 / 2B-3B) match your application. Use proper cutting fluid and speed for optimal 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-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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