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OSG Extension Tap: M20x2 Metric, D7 / 4H-6H, 4 Flute, Plug Chamfer - Spiral-Point Extension Taps for Multiple Materials
OSGSpiral-Point Extension Taps for Multiple Materials

OSG Extension Tap: M20x2 Metric, D7 / 4H-6H, 4 Flute, Plug Chamfer

The OSG Extension Tap is a spiral-point tap for multiple materials, with an M20x2 metric thread. It features a D7 / 4H-6H tolerance, 4 flutes, a plug chamfer, and a V coated powdered metal construction (MPN 1653008608).

SKU 3G-OTH-402457

Brand
OSG
Item
Extension Tap: M20x2 Metric, D7 / 4H-6H, 4 Flute, Plug Chamfer
Category
Spiral-Point Extension Taps for Multiple Materials
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Technical Specifications

OSG
Manufacturer Part Number
1653008608
Type
D7 / 4H-6H, Plug Chamfer, V Coated Powdered Metal
Flute
4
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OSG Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The OSG Extension Tap is a spiral-point tap for multiple materials, with an M20x2 metric thread. It features a D7 / 4H-6H tolerance, 4 flutes, a plug chamfer, and a V coated powdered metal construction (MPN 1653008608).

Frequently Asked Questions

What is the OSG Extension Tap M20x2 used for?

The OSG Extension Tap M20x2 is used for threading blind or deep holes in multiple materials, including steel, stainless steel, and cast iron. Its extended length reaches recessed areas, while the 4-flute plug chamfer design balances chip evacuation and thread strength. The V-coated powdered metal construction provides wear resistance for production environments.

What are the specifications of the OSG Extension Tap M20x2?

This OSG tap has a metric M20x2 thread size, D7 / 4H-6H tolerance class, 4 flutes, and a plug chamfer. It is made of V-coated powdered metal for durability. The manufacturer part number is 1653008608. It is designed as a spiral-point extension tap for threading multiple materials in deep or hard-to-reach holes.

Where to buy the OSG Extension Tap M20x2 worldwide?

You can source the OSG Extension Tap M20x2 through 3G Electric, a global industrial equipment distributor established in 1990. We handle full logistics, customs clearance, and delivery to worldwide destinations. Contact us for availability and lead time. We supply genuine OSG cutting tools to procurement teams and plant engineers globally.

How to select the correct OSG extension tap for a job?

Select the OSG extension tap based on thread size (M20x2), material type, and hole depth. The D7 / 4H-6H tolerance suits general-purpose threading. For blind holes, use a plug chamfer like this model. Ensure the tap's flute count (4) matches chip evacuation needs. Always match the coating (V-coated powdered metal) to workpiece hardness for optimal tool life.

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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