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OSG 3/8"-16 UNC Spiral-Flute Extension Tap - Spiral-Flute Extension Taps for Multiple Materials
OSGSpiral-Flute Extension Taps for Multiple Materials

OSG 3/8"-16 UNC Spiral-Flute Extension Tap

OSG Spiral-Flute Extension Taps for Multiple Materials.

SKU 3G-OTH-311738

Brand
OSG
Item
3/8"-16 UNC Spiral-Flute Extension Tap
Category
Spiral-Flute Extension Taps for Multiple Materials
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Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Delivery
Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
Ships to
Singapore

Technical Specifications

OSG
Manufacturer Part Number
1652502508

Technical Documents

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

Product Description

OSG Spiral-Flute Extension Taps for Multiple Materials.

Frequently Asked Questions

What is an OSG extension tap used for?

An OSG extension tap is used to thread deep or hard-to-reach holes in multiple materials. Its extended reach allows tapping in confined spaces where standard taps cannot access, making it essential for maintenance, repair, and production in industrial settings.

What are the specifications of the OSG extension tap 1652502508?

The OSG extension tap 1652502508 has a 3/8"-16 UNC thread, H5 tolerance for 2B-3B fit, 3 flutes, and a modified bottoming chamfer. It is a spiral-flute design for chip evacuation in blind holes. 3G Electric supplies this genuine OSG part worldwide.

Where to buy OSG extension taps worldwide?

3G Electric supplies OSG extension taps worldwide. As a global industrial solutions provider, we handle full logistics and customs clearance to deliver genuine OSG taps to your facility. Contact us for pricing and lead time on the 1652502508 model.

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

Select an OSG extension tap by matching thread size (e.g., 3/8"-16 UNC), chamfer type (modified bottoming for blind holes), and flute design (spiral for chip evacuation). Ensure the tap length reaches the hole depth. 3G Electric can help you choose the right OSG tap for your material and application.

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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Cross-referenced by specification & description
Spiral-flute tap for threading blind holes in steel and stainless steel. 1/2"-13 UNC thread, H5 tolerance (2B-3B fit), 3-flute design with bottoming chamfer. V coated powdered metal construction. Manufacturer part number 1650512708
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Spiral-flute tap for threading blind holes in steel and stainless steel. 1/2"-13 UNC thread, H5 tolerance (2B-3B fit), 3-flute design with bottoming chamfer. V coated powdered metal construction. Manufacturer part number 1650512708
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Spiral-flute tap for threading steel and stainless steel. Thread size 7/8"-20 UNEF, H5 tolerance for class 2B-3B fit, 4 flutes, modified bottoming chamfer. Suitable for blind-hole threading in industrial manufacturing and maintenance
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Spiral-flute tap for threading blind holes in steel and stainless steel. Features a modified bottoming chamfer and 3-flute design for efficient chip evacuation upward. Thread size 9/16"-18 UNF, H5 tolerance for 2B-3B class fit. Suitable for general manufacturing applications requiring precise internal threads
OSG Spiral Flute Tap: 1 5/8"-8 UNS, H10 / 2B-3B, 4 Flute, Modified Bottoming Chamfer (MPN 1650508308)
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OSG Spiral Flute Tap: 1 5/8"-8 UNS, H10 / 2B-3B, 4 Flute, Modified Bottoming Chamfer (MPN 1650508308)
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OSG Spiral Flute Tap: 3/8"-16 UNC, H5 / 2B-3B, 3 Flute, Bottoming Chamfer, V Coated Powdered Metal (MPN 1650511708)

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