Send a part number, a photo, or a whole BOM — we supply it and stand behind it. Worldwide shipping to 80+ countries.

3G Electric
OSG 1/2"-20 UNF Spiral-Flute Extension Tap - Spiral-Flute Extension Taps for Multiple Materials
OSGSpiral-Flute Extension Taps for Multiple Materials

OSG 1/2"-20 UNF Spiral-Flute Extension Tap

<p>The OSG 1/2"-20 UNF Spiral-Flute Extension Tap (MPN 1652503508) is a high-performance tool designed for threading multiple materials. Featuring a 3-flute design and a modified bottoming chamfer, this tap…

SKU 3G-OTH-311758

Brand
OSG
Item
1/2"-20 UNF Spiral-Flute Extension Tap
Part Number
1652503508
Category
Spiral-Flute Extension Taps for Multiple Materials
Available to Order
Also known as:1652503508OSG
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineerMessage via Telegram
No account needed — your quote request goes straight to our engineers. A free account lets you track quotes and re-order faster.
Worldwide Shipping
Air & sea freight
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

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
1652503508

Technical Documents

No technical documents available for this product.
Request documentation
Not sure this is the right part? Get a recommendation.

Need installation or engineering help?

Installation, commissioning, maintenance plans, system design, and bundled product + service quotes — one team handles the full scope.
Talk to an engineer

Ask a question

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

Product Description

<p>The OSG 1/2"-20 UNF Spiral-Flute Extension Tap (MPN 1652503508) is a high-performance tool designed for threading multiple materials. Featuring a 3-flute design and a modified bottoming chamfer, this tap efficiently evacuates chips in blind-hole applications. The H5 tolerance ensures precise thread fit.</p><p>Ideal for general machining and maintenance, this extension tap offers reach in hard-to-access areas. As a Singapore-based supplier, 3G Electric provides SGD quotes on request, handles GST for local buyers, and offers fast delivery across Singapore and Southeast Asia.</p>

Frequently Asked Questions

What is the thread size and type of this OSG tap?

It is a 1/2"-20 UNF tap, meaning it cuts a Unified Fine thread with 20 threads per inch.

Can I get a quote in SGD and fast delivery in Singapore?

Yes, 3G Electric provides SGD quotes on request and offers fast delivery across Singapore and Southeast Asia.

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
Not sure this is the right part? Photo-identify it

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.

You might also need

Burners & Combustion Pumps & Compressors Spare Parts All Products

More from OSG

View all OSG parts
Spiral-flute extension tap for threading blind or deep holes in multiple materials. The spiral-flute design evacuates chips upward to prevent clogging. Modified bottoming chamfer allows threading close to the hole bottom. D5 / 4H-6H tolerance ensures precise fit for metric fasteners
OSG
Spiral-flute extension tap for threading blind or deep holes in multiple materials. The spiral-flute design evacuates chips upward to prevent clogging. Modified bottoming chamfer allows threading close to the hole bottom. D5 / 4H-6H tolerance ensures precise fit for metric fasteners
This spiral-flute extension tap is designed for threading blind or deep holes in materials such as steel, stainless steel, and aluminum. The spiral-flute geometry evacuates chips upward to prevent clogging, while the modified bottoming chamfer enables threading close to the hole bottom. It features a metric M15x1 thread size, D5 / 4H-6H tolerance class, and a 3-flute design
OSG
This spiral-flute extension tap is designed for threading blind or deep holes in materials such as steel, stainless steel, and aluminum. The spiral-flute geometry evacuates chips upward to prevent clogging, while the modified bottoming chamfer enables threading close to the hole bottom. It features a metric M15x1 thread size, D5 / 4H-6H tolerance class, and a 3-flute design
Spiral-flute extension tap for threading blind holes and hard-to-reach areas in multiple materials. Features 3/4"-16 UNF thread size, H5 tolerance for 2B-3B class fit, 4 flutes, and modified bottoming chamfer. Extended reach allows tapping deep cavities or offset positions in machining and maintenance applications
OSG
Spiral-flute extension tap for threading blind holes and hard-to-reach areas in multiple materials. Features 3/4"-16 UNF thread size, H5 tolerance for 2B-3B class fit, 4 flutes, and modified bottoming chamfer. Extended reach allows tapping deep cavities or offset positions in machining and maintenance applications
Spiral-flute extension tap for threading blind holes in multiple materials. The spiral-flute design evacuates chips upward, suitable for deep-hole tapping. Modified bottoming chamfer allows threading close to the hole bottom. Size #8-36 UNF with H2 / 2B-3B thread class, 2 flutes
OSG
Spiral-flute extension tap for threading blind holes in multiple materials. The spiral-flute design evacuates chips upward, suitable for deep-hole tapping. Modified bottoming chamfer allows threading close to the hole bottom. Size #8-36 UNF with H2 / 2B-3B thread class, 2 flutes

Customer reviews

No reviews yet — be the first

Questions & answers

No questions yet — ask us the first