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OSG Extension Tap: M12x1.25 Metric, D6 / 4H-6H, 3 Flute, Plug Chamfer - Spiral-Point Extension Taps for Multiple Materials
OSGSpiral-Point Extension Taps for Multiple Materials

OSG Extension Tap: M12x1.25 Metric, D6 / 4H-6H, 3 Flute, Plug Chamfer

The OSG Extension Tap (M12x1.25 Metric) is a spiral-point extension tap for multiple materials, featuring a D6 / 4H-6H tolerance, plug chamfer, and V coated powdered metal construction with 3 flutes (MPN 1653006308).

SKU 3G-OTH-402402

Brand
OSG
Item
Extension Tap: M12x1.25 Metric, D6 / 4H-6H, 3 Flute, Plug Chamfer
Category
Spiral-Point Extension Taps for Multiple Materials
Available to Order
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Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Delivery
Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
Ships to
Singapore

Technical Specifications

OSG
Manufacturer Part Number
1653006308
Type
D6 / 4H-6H, Plug Chamfer, V Coated Powdered Metal
Flute
3

Technical Documents

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

Product Description

The OSG Extension Tap (M12x1.25 Metric) is a spiral-point extension tap for multiple materials, featuring a D6 / 4H-6H tolerance, plug chamfer, and V coated powdered metal construction with 3 flutes (MPN 1653006308).

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 M12x1.25 metric size with a plug chamfer and V coating on powdered metal handles multiple materials, including steel and stainless steel, in industrial machining applications.

What are the specifications of the OSG M12x1.25 extension tap?

This OSG extension tap has a M12x1.25 metric thread, D6 / 4H-6H tolerance, 3 flutes, plug chamfer, and V coated powdered metal construction. The manufacturer part number is 1653006308. It is designed for spiral-point threading in multiple materials.

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 and deliver genuine OSG taps like the M12x1.25 D6 / 4H-6H model to support your machining operations anywhere.

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 M12x1.25 threads in multiple materials, use a plug chamfer with V coating. Ensure the tap length reaches the full thread depth without overloading the tool. Consult OSG's technical data for feed and speed 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 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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