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OSG Extension Tap: 7/8"-14 UNF, H6 / 2B-3B, 3 Flute, Plug Chamfer - Spiral-Point Extension Taps for Multiple Materials
OSGSpiral-Point Extension Taps for Multiple Materials

OSG Extension Tap: 7/8"-14 UNF, H6 / 2B-3B, 3 Flute, Plug Chamfer

The OSG Extension Tap (7/8"-14 UNF, MPN 1653505508) is a spiral-point extension tap for multiple materials, featuring a H6 / 2B-3B tolerance, plug chamfer, V coated powdered metal construction, and 3 flutes. 3G…

SKU 3G-OTH-402475

Brand
OSG
Item
Extension Tap: 7/8"-14 UNF, H6 / 2B-3B, 3 Flute, Plug Chamfer
Category
Spiral-Point Extension Taps for Multiple Materials
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Technical Specifications

OSG
Manufacturer Part Number
1653505508
Type
H6 / 2B-3B, Plug Chamfer, V Coated Powdered Metal
Flute
3
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OSG Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The OSG Extension Tap (7/8"-14 UNF, MPN 1653505508) is a spiral-point extension tap for multiple materials, featuring a H6 / 2B-3B tolerance, plug chamfer, V coated powdered metal construction, and 3 flutes. 3G Electric interprets this demand and sources the genuine OEM product, backed by specialist expertise in cutting tools across 14 industrial departments.

Frequently Asked Questions

What is the OSG Extension Tap 7/8"-14 UNF used for?

This OSG extension tap is designed for threading blind or through holes in multiple materials, including steel, stainless steel, and aluminum. Its 3-flute spiral-point design pushes chips forward, making it ideal for production tapping where chip evacuation is critical. The V-coated powdered metal construction provides wear resistance for extended tool life.

What are the specifications of the OSG Extension Tap 7/8"-14 UNF?

The OSG Extension Tap (MPN 1653505508) has a 7/8"-14 UNF thread size with H6 / 2B-3B tolerance. It features 3 flutes, a plug chamfer, and a V-coated powdered metal substrate. This spiral-point extension tap is designed for threading multiple materials and is manufactured by OSG.

Where to buy the OSG Extension Tap 7/8"-14 UNF worldwide?

3G Electric supplies the OSG Extension Tap 7/8"-14 UNF worldwide. As a global industrial equipment distributor since 1990, we handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time on this OSG tap.

How to select the correct OSG extension tap for threading?

Select an OSG extension tap based on thread size, pitch, and tolerance class (e.g., H6 / 2B-3B). Match the chamfer type (plug, bottoming, or taper) to your hole type—plug chamfer suits through holes. Consider material: V-coated powdered metal taps work well on steel and stainless. Always verify the tap's flute count and coating for your application.

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 multiple materials. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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