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OSG Extension Tap: 5/16"-18 UNC, H3 / 2B-3B, 3 Flute - Spiral-Point Extension Taps for Steel & Stainless Steel
OSGSpiral-Point Extension Taps for Steel & Stainless Steel

OSG Extension Tap: 5/16"-18 UNC, H3 / 2B-3B, 3 Flute

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

SKU 3G-OTH-313187

Brand
OSG
Item
Extension Tap: 5/16"-18 UNC, H3 / 2B-3B, 3 Flute
Category
Spiral-Point Extension Taps for Steel & Stainless Steel
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Worldwide DHL shipping from Singapore; 7–14 business days door-to-door for most destinations.
Payment
Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.

Technical Specifications

OSG
Manufacturer Part Number
1765201

Technical Documents

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

Product Description

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

Frequently Asked Questions

What is the OSG extension tap 1765201 used for?

The OSG extension tap 1765201 is used for threading blind or deep holes in steel and stainless steel. Its spiral-point design pushes chips forward, while the extended length reaches recessed areas. It is common in automotive, aerospace, and general manufacturing where precise internal threads are required.

What are the specifications of the OSG extension tap 1765201?

The OSG extension tap 1765201 is a 5/16"-18 UNC spiral-point tap with a plug chamfer and 3 flutes. It has an H3 / 2B-3B tolerance class, meaning it produces threads within a 2B (for nut) or 3B (precision) fit. The manufacturer part number is 1765201, and it is designed for steel and stainless steel.

Where to buy the OSG extension tap 1765201 worldwide?

You can source the OSG extension tap 1765201 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 provide competitive pricing and reliable sourcing for this OSG tap.

How to select the correct OSG extension tap for steel?

To select the correct OSG extension tap for steel, match the thread size (e.g., 5/16"-18 UNC), chamfer type (plug for blind holes), and flute count (3 for spiral-point). Ensure the H3 / 2B-3B tolerance fits your application. For deep or recessed holes, choose an extension tap like the 1765201. Always verify material compatibility with OSG's recommendations.

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-point 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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Cross-referenced by specification & description
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