Send a part number, a photo, or a whole BOM — we supply it and stand behind it. EXW Singapore — collect from our office.

3G Electric
OSG 1/2"-13 UNC Spiral-Flute Tap - Spiral-Flute Taps for Steel & Stainless Steel
OSGSpiral-Flute Taps for Steel & Stainless Steel

OSG 1/2"-13 UNC Spiral-Flute Tap

<p>The OSG 1/2"-13 UNC Spiral-Flute Tap (MPN 1723401) is a high-performance threading tool designed for steel and stainless steel. Featuring a modified bottoming chamfer and three flutes, it efficiently evacuates…

SKU 3G-OTH-217861

Brand
OSG
Item
1/2"-13 UNC Spiral-Flute Tap
Part Number
1723401
Category
Spiral-Flute Taps for Steel & Stainless Steel
Available to Order
Also known as:1723401OSG
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.
EXW Singapore
Collect or forward from our office
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
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.

Technical Specifications

OSG
Manufacturer Part Number
1723401
Type
H5 / 2B-3B, Modified Bottoming Chamfer
Flute
3

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"-13 UNC Spiral-Flute Tap (MPN 1723401) is a high-performance threading tool designed for steel and stainless steel. Featuring a modified bottoming chamfer and three flutes, it efficiently evacuates chips in blind-hole applications. With an H5 tolerance class and 2B-3B thread fit, it delivers precise, consistent threads.</p><p>Ideal for manufacturing and maintenance operations, this tap is a reliable choice for demanding materials. As a Singapore-based supplier, 3G Electric offers SGD quotes on request, handles GST for local buyers, and provides 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"-13 UNC tap with a modified bottoming chamfer and 3 flutes, designed for steel and stainless steel.

What is the tolerance class and fit of this tap?

It has an H5 tolerance class and is rated for 2B-3B thread fit, ensuring precise internal threads.

Used in

Common applications for OSG
Aerospace — OSG STI taps for installing helical wire thread inserts in aluminum components
Automotive — OSG spiral-point taps for through-hole threading in engine blocks and transmission cases
General machining — OSG spiral-flute taps for blind-hole threading in steel and stainless steel parts
Heavy equipment repair — OSG thread-forming taps for creating threads in ductile iron and steel castings
Precision manufacturing — OSG solid carbide chucking reamers for finishing holes in hydraulic manifolds
Die and mold — OSG coolant-through solid carbide drills for deep-hole drilling in tool steels
Not sure this is the right part? Photo-identify it→

OSG Products

3G Electric supplies OSG spiral-flute taps for steel & stainless steel. 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 →
OSG Spiral Flute Tap: M36x1.5 Metric, D8 / 4H-6H, 4 Flute, Modified Bottoming Chamfer (MPN 1650008108)
OSG
OSG Spiral Flute Tap: M36x1.5 Metric, D8 / 4H-6H, 4 Flute, Modified Bottoming Chamfer (MPN 1650008108)
Spiral-flute tap for threading blind holes in steel and stainless steel. Features 3 flutes, H4 tolerance for 2B-3B thread classes, and a modified bottoming chamfer for threading close to hole bottoms. Part number 1722908
OSG
Spiral-flute tap for threading blind holes in steel and stainless steel. Features 3 flutes, H4 tolerance for 2B-3B thread classes, and a modified bottoming chamfer for threading close to hole bottoms. Part number 1722908
Spiral-flute tap for threading blind holes in steel and stainless steel. M8x1.25 metric thread, D5 / 4H-6H tolerance, 3 flutes, modified bottoming chamfer. Chip evacuation upward prevents clogging, allowing threading close to hole bottom
OSG
Spiral-flute tap for threading blind holes in steel and stainless steel. M8x1.25 metric thread, D5 / 4H-6H tolerance, 3 flutes, modified bottoming chamfer. Chip evacuation upward prevents clogging, allowing threading close to hole bottom
Spiral-flute tap for threading blind holes in steel and stainless steel. #10-24 UNC thread size, H5 tolerance, 2B-3B class, modified bottoming chamfer, 3 flutes. Lifts chips upward to prevent clogging in deep or blind holes
OSG
Spiral-flute tap for threading blind holes in steel and stainless steel. #10-24 UNC thread size, H5 tolerance, 2B-3B class, modified bottoming chamfer, 3 flutes. Lifts chips upward to prevent clogging in deep or blind holes
Spiral-flute tap for threading blind holes in steel and stainless steel. M12x1.75 metric thread, D6 / 4H-6H tolerance class, 3 flutes, modified bottoming chamfer. The spiral flute design lifts chips upward, preventing clogging in deep or blind holes. Suitable for automotive, aerospace, and general manufacturing applications requiring precise metric threads
OSG
Spiral-flute tap for threading blind holes in steel and stainless steel. M12x1.75 metric thread, D6 / 4H-6H tolerance class, 3 flutes, modified bottoming chamfer. The spiral flute design lifts chips upward, preventing clogging in deep or blind holes. Suitable for automotive, aerospace, and general manufacturing applications requiring precise metric threads
This OSG spiral-flute tap is designed for threading blind holes in steel and stainless steel. The spiral flute lifts chips upward, preventing clogging in deep or blind holes. It features a 1/2"-20 UNF thread size, H3 / 2B-3B tolerance, 3 flutes, and a modified bottoming chamfer. Suitable for general manufacturing applications requiring precise UNF threads
OSG
This OSG spiral-flute tap is designed for threading blind holes in steel and stainless steel. The spiral flute lifts chips upward, preventing clogging in deep or blind holes. It features a 1/2"-20 UNF thread size, H3 / 2B-3B tolerance, 3 flutes, and a modified bottoming chamfer. Suitable for general manufacturing applications requiring precise UNF threads
Spiral-flute tap for threading blind holes in steel and stainless steel. 3/8"-24 UNF thread, H4 / 2B-3B tolerance, bottoming chamfer, 3 flutes. V coated powdered metal construction. Chips evacuate upward, preventing clogging in blind-hole applications
OSG
Spiral-flute tap for threading blind holes in steel and stainless steel. 3/8"-24 UNF thread, H4 / 2B-3B tolerance, bottoming chamfer, 3 flutes. V coated powdered metal construction. Chips evacuate upward, preventing clogging in blind-hole applications
Spiral-flute tap for threading steel and stainless steel. Thread size 15/16"-20 UNEF with H5 tolerance for 2B-3B class fit. Features 4 flutes and a modified bottoming chamfer for chip evacuation in blind-hole applications
OSG
Spiral-flute tap for threading steel and stainless steel. Thread size 15/16"-20 UNEF with H5 tolerance for 2B-3B class fit. Features 4 flutes and a modified bottoming chamfer for chip evacuation in blind-hole applications

Customer reviews

No reviews yet — be the first

Questions & answers

No questions yet — ask us the first