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OSG Extension Tap: #8-32 UNC, H3 / 2B-3B, 3 Flute - Spiral-Flute Extension Taps for Steel & Stainless Steel
OSGSpiral-Flute Extension Taps for Steel & Stainless Steel

OSG Extension Tap: #8-32 UNC, H3 / 2B-3B, 3 Flute

OSG Spiral-Flute Extension Taps for Steel & Stainless Steel.

SKU 3G-OTH-315310

Brand
OSG
Item
Extension Tap: #8-32 UNC, H3 / 2B-3B, 3 Flute
Category
Spiral-Flute Extension Taps for Steel & Stainless Steel
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Technical Specifications

OSG
Manufacturer Part Number
1766701

Technical Documents

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OSG Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

OSG Spiral-Flute Extension Taps for Steel & Stainless Steel.

Frequently Asked Questions

What is the OSG #8-32 UNC extension tap used for?

This OSG extension tap is designed for threading blind holes in steel and stainless steel. Its spiral-flute design evacuates chips upward, making it ideal for deep-hole tapping where chip clearance is critical. The modified bottoming chamfer allows threading close to the hole bottom.

What are the specifications of the OSG extension tap MPN 1766701?

The OSG extension tap has a #8-32 UNC thread size, H3 / 2B-3B tolerance, 3 flutes, and a modified bottoming chamfer. It is a spiral-flute extension tap for steel and stainless steel. The manufacturer part number is 1766701.

Where to buy the OSG #8-32 UNC extension tap worldwide?

3G Electric supplies the OSG #8-32 UNC extension tap worldwide. We handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time. As a global industrial distributor, we source and deliver this OSG tap to any country.

How to select the correct OSG extension tap for steel?

Select an OSG extension tap based on thread size, tolerance class, and material. For steel and stainless steel, use a spiral-flute tap with a modified bottoming chamfer for blind holes. Ensure the tap's H3 / 2B-3B tolerance matches your required thread fit. Always match the tap to the hole depth and material hardness.

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 extension 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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OSG Extension Tap: #8-32 UNC, H3 / 2B-3B, 3 Flute, Modified Bottoming Chamfer (MPN 1766901)
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