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OSG 7/16"-14 UNC Spiral-Point Extension Tap - Spiral-Point Extension Taps for Multiple Materials
OSGSpiral-Point Extension Taps for Multiple Materials

OSG 7/16"-14 UNC Spiral-Point Extension Tap

The OSG Extension Tap (7/16"-14 UNC) is a spiral-point extension tap for multiple materials, featuring a H5 / 2B-3B tolerance, plug chamfer, V Coated Powdered Metal construction, and 3 flutes (MPN 1653503308).

SKU 3G-OTH-402448

Brand
OSG
Item
7/16"-14 UNC Spiral-Point Extension Tap
Category
Spiral-Point Extension Taps for Multiple Materials
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Worldwide DHL shipping from Singapore; 7–14 business days door-to-door for most destinations.
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Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.

Technical Specifications

OSG
Manufacturer Part Number
1653503308
Type
H5 / 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 (7/16"-14 UNC) is a spiral-point extension tap for multiple materials, featuring a H5 / 2B-3B tolerance, plug chamfer, V Coated Powdered Metal construction, and 3 flutes (MPN 1653503308).

Frequently Asked Questions

What is the OSG Extension Tap 7/16"-14 UNC used for?

This OSG extension tap is designed for threading blind or deep holes in multiple materials, including steel, stainless steel, and aluminum. Its 3-flute spiral-point design pushes chips forward, making it ideal for through-hole applications in automotive, aerospace, and general manufacturing.

What are the specifications of the OSG Extension Tap 7/16"-14 UNC?

The OSG extension tap has a 7/16"-14 UNC thread size, H5 tolerance for 2B-3B class fit, 3 flutes, and a plug chamfer. It features a V coating on powdered metal construction, with manufacturer part number 1653503308. This tap is suitable for threading multiple materials.

Where to buy the OSG Extension Tap 7/16"-14 UNC worldwide?

You can source the OSG extension tap MPN 1653503308 from 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations, ensuring you receive the correct threading tool for your application.

How to select the correct OSG extension tap for threading?

Select the OSG extension tap based on thread size, pitch, and material. For 7/16"-14 UNC threads in steel or aluminum, this V-coated powdered metal tap provides good wear resistance. Ensure the tap length matches your hole depth, and use proper cutting fluid for best results.

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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Compatible alternatives & equivalents

Cross-referenced by specification & description
OSG Extension Tap: 3/8"-16 UNC, H5 / 2B-3B, 3 Flute, Plug Chamfer, V Coated Powdered Metal (MPN 1653502908)
OSG
OSG Extension Tap: 3/8"-16 UNC, H5 / 2B-3B, 3 Flute, Plug Chamfer, V Coated Powdered Metal (MPN 1653502908)
OSG Extension Tap: 5/8"-18 UNF, H5 / 2B-3B, 3 Flute, Plug Chamfer, V Coated Powdered Metal (MPN 1653504708)
OSG
OSG Extension Tap: 5/8"-18 UNF, H5 / 2B-3B, 3 Flute, Plug Chamfer, V Coated Powdered Metal (MPN 1653504708)
Spiral-point tap for through-hole threading in aerospace materials. Features TiN-coated cobalt construction, H5 tolerance (2B-3B), plug chamfer, and 3 flutes for efficient chip evacuation. Suitable for high-strength alloys
OSG
Spiral-point tap for through-hole threading in aerospace materials. Features TiN-coated cobalt construction, H5 tolerance (2B-3B), plug chamfer, and 3 flutes for efficient chip evacuation. Suitable for high-strength alloys
OSG Spiral Point Tap: 5/16"-18 UNC, H5 / 2B-3B, 3 Flute, Plug Chamfer, V Coated Powdered Metal (MPN 1700608)
OSG
OSG Spiral Point Tap: 5/16"-18 UNC, H5 / 2B-3B, 3 Flute, Plug Chamfer, V Coated Powdered Metal (MPN 1700608)
Spiral-point tap for through-hole threading in steel and stainless steel. Features H5 tolerance for 2B/3B thread classes, plug chamfer, 3 flutes, and V coated powdered metal construction. Thread size: 15/16"-20 UNEF
OSG
Spiral-point tap for through-hole threading in steel and stainless steel. Features H5 tolerance for 2B/3B thread classes, plug chamfer, 3 flutes, and V coated powdered metal construction. Thread size: 15/16"-20 UNEF
OSG Spiral Point Tap: 7/8"-20 UNEF, H5 / 2B-3B, 3 Flute, Plug Chamfer, V Coated Powdered Metal (MPN 1651507108)
OSG
OSG Spiral Point Tap: 7/8"-20 UNEF, H5 / 2B-3B, 3 Flute, Plug Chamfer, V Coated Powdered Metal (MPN 1651507108)

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