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OSG M12x1.75 Spiral-Point Extension Tap - Spiral-Point Extension Taps
OSGSpiral-Point Extension Taps

OSG M12x1.75 Spiral-Point Extension Tap

The OSG Extension Tap (M12x1.75 Metric) is a spiral-point extension tap with a D6 / 4H-6H tolerance, 3 flutes, plug chamfer, and black oxide high-speed steel construction (MPN 1111801301). 3G Electric interprets…

SKU 3G-OTH-313551

Brand
OSG
Item
M12x1.75 Spiral-Point Extension Tap
Part Number
1111801301
Category
Spiral-Point Extension Taps
Available to Order
Also known as:1111801301OSG
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Technical Specifications

OSG
Manufacturer Part Number
1111801301
Type
D6 / 4H-6H, Plug Chamfer, Black Oxide High Speed Steel
Flute
3

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

Product Description

The OSG Extension Tap (M12x1.75 Metric) is a spiral-point extension tap with a D6 / 4H-6H tolerance, 3 flutes, plug chamfer, and black oxide high-speed steel construction (MPN 1111801301). 3G Electric interprets demand and sources this genuine industrial tool across 14 departments — with specialist depth in combustion, pumps, and controls — ensuring you get the right answer, not just a catalog.

Frequently Asked Questions

What is an OSG extension tap used for?

An OSG extension tap is used to cut internal threads in hard-to-reach or deep-hole applications. The extended shank allows threading in recessed areas, such as engine blocks or hydraulic manifolds. This M12x1.75 metric tap with plug chamfer and 3-flute design is suited for through-hole threading in steel and other materials.

What are the specifications of the OSG M12x1.75 extension tap?

This OSG extension tap has a metric thread size of M12x1.75, a D6 / 4H-6H tolerance class, 3 flutes, and a plug chamfer. It is made from black oxide high-speed steel (HSS) for wear resistance. The manufacturer part number is 1111801301, and it is a spiral-point extension tap designed for through-hole threading.

Where to buy OSG extension taps worldwide?

You can source OSG extension taps worldwide through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time on the M12x1.75 extension tap (MPN 1111801301). We supply genuine OSG tooling to industrial buyers globally.

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

To select the correct OSG extension tap, match the thread size (e.g., M12x1.75) and pitch to your application. Choose a plug chamfer for through-holes and a spiral-point design for chip evacuation. The D6 / 4H-6H tolerance ensures precise thread fit. Verify shank length reaches the threading depth. 3G Electric can help source the right tap for your job.

Used in

Common applications for OSG
Aerospace — OSG STI taps for installing helical wire thread inserts in aluminum components
Automotive — OSG spiral-point taps for through-hole threading in engine blocks and transmission cases
General machining — OSG spiral-flute taps for blind-hole threading in steel and stainless steel parts
Heavy equipment repair — OSG thread-forming taps for creating threads in ductile iron and steel castings
Precision manufacturing — OSG solid carbide chucking reamers for finishing holes in hydraulic manifolds
Die and mold — OSG coolant-through solid carbide drills for deep-hole drilling in tool steels
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OSG Products

3G Electric supplies OSG spiral-point extension taps. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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High-speed steel spiral-point extension tap for threading blind or deep holes where standard taps cannot reach. #4-40 UNC thread size, H2 tolerance for 2B-3B class fit, plug chamfer, and 2 flutes. Spiral-point design pushes chips forward for efficient chip evacuation in through-hole applications

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