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OSG Extension Tap: M5x0.8 Metric, D4 / 4H-6H, 2 Flute, Plug Chamfer - Spiral-Point Extension Taps
OSGSpiral-Point Extension Taps

OSG Extension Tap: M5x0.8 Metric, D4 / 4H-6H, 2 Flute, Plug Chamfer

SKU 3G-OTH-313659

Brand
OSG
Item
Extension Tap: M5x0.8 Metric, D4 / 4H-6H, 2 Flute, Plug Chamfer
Category
Spiral-Point Extension Taps
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Technical Specifications

OSG
Manufacturer Part Number
1111800401
Type
D4 / 4H-6H, Plug Chamfer, Black Oxide High Speed Steel
Flute
2
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OSG Products
3G Electric (S) Pte. Ltd. — Singapore

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 extended shank allows access to recessed areas where standard taps cannot reach, making it essential for machining complex parts in automotive, aerospace, and general manufacturing.

What are the specifications of the OSG M5x0.8 extension tap?

This OSG extension tap has a metric M5x0.8 thread, D4 / 4H-6H tolerance, 2 flutes, plug chamfer, and is made from black oxide high-speed steel. The manufacturer part number is 1111800401. It is designed for precise threading in steel and other materials.

Where to buy OSG extension taps worldwide?

3G Electric supplies OSG extension taps worldwide. We handle full logistics, customs clearance, and delivery to your facility. As a global industrial solutions provider, we source genuine OSG tooling and ensure it reaches you efficiently, no matter your location.

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 M5x0.8 threads, ensure the tap has sufficient reach. Use a plug chamfer for through holes and consider black oxide coating for improved lubricity and wear resistance in steel applications.

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. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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