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OSG Spiral-Flute Extension Tap 7/8"-9 UNC H6 4 Flute Modified Bottoming Chamfer - Spiral-Flute Extension Taps for Multiple Materials
OSGSpiral-Flute Extension Taps for Multiple Materials

OSG Spiral-Flute Extension Tap 7/8"-9 UNC H6 4 Flute Modified Bottoming Chamfer

OSG Spiral-Flute Extension Taps for Multiple Materials.

SKU 3G-OTH-311754

Brand
OSG
Item
Spiral-Flute Extension Tap 7/8"-9 UNC H6 4 Flute Modified Bottoming Chamfer
Category
Spiral-Flute Extension Taps for Multiple Materials
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Technical specs
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Local availability & support — the Philippines

Delivery
5–8 business days door-to-door; Bureau of Customs clearance typically 2–4 business days.
Payment
Invoicing in PHP or USD. Bank transfer and corporate PO accepted.
Ships to
Manila, Quezon City, Cebu, Davao, Batangas

Technical Specifications

OSG
Manufacturer Part Number
1652504908

Technical Documents

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

Product Description

OSG Spiral-Flute Extension Taps for Multiple Materials.

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 7/8"-9 UNC used for?

The OSG Extension Tap is used for threading blind or deep holes in multiple materials, including steel, stainless steel, and aluminum. Its spiral-flute design evacuates chips upward, preventing clogging. The modified bottoming chamfer allows threading close to the hole bottom, making it ideal for automotive, aerospace, and general manufacturing applications.

What are the specifications of the OSG Extension Tap 7/8"-9 UNC?

The OSG Extension Tap has a thread size of 7/8"-9 UNC with a tolerance of H6 for the tap and 2B-3B for the threaded hole. It features 4 flutes, a modified bottoming chamfer, and a spiral-flute design for chip evacuation. The manufacturer part number is 1652504908, and it is designed for multiple materials.

Where to buy the OSG Extension Tap 7/8"-9 UNC worldwide?

You can source the OSG Extension Tap 7/8"-9 UNC 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 needs.

How to select the correct OSG extension tap for threading?

To select the correct OSG extension tap, match the thread size (e.g., 7/8"-9 UNC), tolerance class (H6 for tap, 2B-3B for hole), and chamfer type to your application. For deep or blind holes, choose a spiral-flute design with a modified bottoming chamfer. Verify material compatibility and ensure the tap length reaches the required depth. Consult OSG's technical data for guidance.

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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