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OSG Extension Tap: 3/8"-16 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: 3/8"-16 UNC, H3 / 2B-3B, 3 Flute

SKU 3G-OTH-315316

Brand
OSG
Item
Extension Tap: 3/8"-16 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
1768701
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OSG Products
3G Electric (S) Pte. Ltd. — Singapore

Frequently Asked Questions

What is the OSG Extension Tap 1768701 used for?

The OSG Extension Tap 1768701 is designed for threading blind holes in steel and stainless steel. Its spiral-flute design evacuates chips upward, preventing clogging, while the extended length allows access to deep or recessed areas. It is commonly used in automotive, aerospace, and general manufacturing applications.

What are the specifications of the OSG Extension Tap 1768701?

This OSG tap has a thread size of 3/8"-16 UNC with an H3 / 2B-3B tolerance class. It features 3 flutes and a modified bottoming chamfer for threading close to the bottom of blind holes. The spiral-flute design is optimized for steel and stainless steel. Manufacturer part number is 1768701.

Where to buy the OSG Extension Tap 1768701 worldwide?

You can source the OSG Extension Tap 1768701 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; we supply genuine OSG cutting tools to procurement teams globally.

How to select the correct OSG extension tap for steel?

Select an OSG extension tap based on thread size, pitch, and material. For steel and stainless steel, choose a spiral-flute design like the 1768701 to manage chip evacuation in blind holes. Verify the thread class (e.g., H3 / 2B-3B) matches your tolerance requirements. Always match the tap to the hole depth and machine capability.

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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