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OSG Extension Tap: M8x1.25 Metric, D5 / 4H-6H, 3 Flute, Plug Chamfer - Spiral-Point Extension Taps for Multiple Materials
OSGSpiral-Point Extension Taps for Multiple Materials

OSG Extension Tap: M8x1.25 Metric, D5 / 4H-6H, 3 Flute, Plug Chamfer

The OSG Extension Tap is a spiral-point extension tap for multiple materials, featuring an M8x1.25 Metric thread. It is a D5 / 4H-6H, Plug Chamfer, V Coated Powdered Metal tap with 3 flutes (MPN 1653003708).

SKU 3G-OTH-402463

Brand
OSG
Item
Extension Tap: M8x1.25 Metric, D5 / 4H-6H, 3 Flute, Plug Chamfer
Category
Spiral-Point Extension Taps for Multiple Materials
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Delivery
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
1653003708
Type
D5 / 4H-6H, 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 is a spiral-point extension tap for multiple materials, featuring an M8x1.25 Metric thread. It is a D5 / 4H-6H, Plug Chamfer, V Coated Powdered Metal tap with 3 flutes (MPN 1653003708).

Frequently Asked Questions

What is an OSG extension tap used for?

An OSG extension tap is used to cut internal threads in deep or hard-to-reach holes. The M8x1.25 metric size with a plug chamfer and V coated powdered metal construction handles multiple materials including steel and stainless steel, providing extended reach for machining applications.

What are the specifications of the OSG extension tap M8x1.25?

This OSG extension tap has a metric M8x1.25 thread size, D5 / 4H-6H tolerance, 3 flutes, plug chamfer, and V coated powdered metal. The manufacturer part number is 1653003708. It is designed for threading in multiple materials with extended reach.

Where to buy OSG extension taps worldwide?

3G Electric supplies OSG extension taps worldwide, handling full logistics and customs clearance. As a global industrial solutions provider, we source genuine OSG cutting tools like the M8x1.25 extension tap and deliver to your facility, ensuring compliance with international shipping requirements.

How to select the right OSG extension tap for deep hole threading?

Select an OSG extension tap based on thread size, material, and hole depth. For M8x1.25 threads in multiple materials, choose a plug chamfer with V coated powdered metal for wear resistance. Ensure the tap length exceeds hole depth and use proper cutting fluid for optimal thread quality.

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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