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OSG Extension Tap: M8x0.75 Metric, D4 / 4H-6H, 3 Flute - Spiral-Flute Extension Taps for Multiple Materials
OSGSpiral-Flute Extension Taps for Multiple Materials

OSG Extension Tap: M8x0.75 Metric, D4 / 4H-6H, 3 Flute

The OSG Extension Tap is a spiral-flute tap for multiple materials, with an M8x0.75 Metric thread, D4 / 4H-6H tolerance, 3 flutes, and a modified bottoming chamfer (MPN 1652003308).

SKU 3G-OTH-311719

Brand
OSG
Item
Extension Tap: M8x0.75 Metric, D4 / 4H-6H, 3 Flute
Category
Spiral-Flute Extension Taps for Multiple Materials
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Technical Specifications

OSG
Manufacturer Part Number
1652003308
Type
D4 / 4H-6H, Modified Bottoming Chamfer
Flute
3
View Full Spec Sheet

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

Product Description

The OSG Extension Tap is a spiral-flute tap for multiple materials, with an M8x0.75 Metric thread, D4 / 4H-6H tolerance, 3 flutes, and a modified bottoming chamfer (MPN 1652003308).

Supplied to the Philippines — compatible with 60 Hz installations. DHL Express delivery to Manila, Quezon City, Cebu, customs and duties handled door-to-door.

Frequently Asked Questions

What is the OSG Extension Tap M8x0.75 used for?

The OSG Extension Tap M8x0.75 is used for threading blind or deep holes in multiple materials, including steel and aluminum. Its spiral-flute design helps evacuate chips upward, while the modified bottoming chamfer allows threading close to the hole bottom. It is common in automotive and general manufacturing applications.

What are the specifications of the OSG Extension Tap M8x0.75?

The OSG Extension Tap has a metric M8x0.75 thread size, a D4 / 4H-6H tolerance class, and a 3-flute spiral-flute design with a modified bottoming chamfer. The manufacturer part number is 1652003308. It is designed for threading multiple materials and is available as SKU 54MJ57 from 3G Electric.

Where to buy the OSG Extension Tap M8x0.75 worldwide?

You can source the OSG Extension Tap M8x0.75 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; we provide reliable sourcing for this OSG tap and other industrial tooling.

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., M8x0.75) and tolerance class (D4 / 4H-6H) to your application. For deep or blind holes, choose a spiral-flute design with a modified bottoming chamfer to clear chips and thread near the bottom. Verify material compatibility and consult OSG's technical data for optimal performance.

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-flute 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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