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OSG Spiral Flute Tap: #6-40 UNF, H2 / 2B-3B, 2 Flute - Spiral-Flute Taps for Steel & Stainless Steel
OSGSpiral-Flute Taps for Steel & Stainless Steel

OSG Spiral Flute Tap: #6-40 UNF, H2 / 2B-3B, 2 Flute

SKU 3G-OTH-219149

Brand
OSG
Item
Spiral Flute Tap: #6-40 UNF, H2 / 2B-3B, 2 Flute
Category
Spiral-Flute Taps for Steel & Stainless Steel
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Technical Specifications

OSG
Manufacturer Part Number
1645006402
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OSG Products
3G Electric (S) Pte. Ltd. — Singapore

Frequently Asked Questions

What is the OSG spiral flute tap #6-40 UNF used for?

This OSG spiral flute tap is designed for threading steel and stainless steel. The #6-40 UNF size and modified bottoming chamfer make it suitable for through-hole and blind-hole applications where chip evacuation is critical. It is commonly used in precision machining, automotive, and aerospace manufacturing.

What are the specifications of the OSG spiral flute tap 1645006402?

The OSG spiral flute tap has a #6-40 UNF thread size, H2 / 2B-3B tolerance, 2 flutes, and a modified bottoming chamfer. The manufacturer part number is 1645006402. It is designed for steel and stainless steel, ensuring reliable thread cutting in demanding materials.

Where to buy OSG spiral flute taps worldwide?

You can source OSG spiral flute taps worldwide through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time on the OSG 1645006402 tap.

How to select the correct OSG spiral flute tap for steel?

Select an OSG spiral flute tap based on thread size, material, and hole type. For steel and stainless steel, use taps with H2 / 2B-3B tolerance and modified bottoming chamfer for blind holes. Ensure the tap matches your required UNF thread class and flute count for optimal chip evacuation.

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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