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3G Electric
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, MPN 1111801201) is a spiral-point extension tap with a D6 / 4H-6H tolerance, 3 flutes, plug chamfer, and black oxide high-speed steel construction.

SKU 3G-OTH-313609

Brand
OSG
Item
M12x1.75 Spiral-Point Extension Tap
Part Number
1111801201
Category
Spiral-Point Extension Taps
Available to Order
Also known as:1111801201OSG
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Local office
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Phone
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Technical Specifications

OSG
Manufacturer Part Number
1111801201
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, MPN 1111801201) is a spiral-point extension tap with a D6 / 4H-6H tolerance, 3 flutes, plug chamfer, and black oxide high-speed steel construction.

Frequently Asked Questions

What is the OSG Extension Tap M12x1.75 used for?

The OSG Extension Tap M12x1.75 is used for threading blind or deep holes in metal parts, particularly where standard taps cannot reach. It is common in automotive, aerospace, and general machining applications requiring precise internal threads in hard-to-access locations.

What are the specifications of the OSG Extension Tap M12x1.75?

This OSG tap has a metric thread size of M12x1.75, a D6 / 4H-6H tolerance class, 3 flutes, a plug chamfer, and is made from black oxide high-speed steel. The manufacturer part number is 1111801201. It is a spiral-point extension tap designed for through-hole threading.

Where to buy the OSG Extension Tap M12x1.75 worldwide?

You can source the OSG Extension Tap M12x1.75 through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations. Contact us for availability and lead time on this item.

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

Select an OSG extension tap based on thread size (e.g., M12x1.75), material (high-speed steel for general use), flute count (3 flutes for chip evacuation), and reach length. Ensure the tap's tolerance class (D6 / 4H-6H) matches your required thread fit. Consult OSG's technical data for specific depth and material recommendations.

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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