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

OSG Spiral-Flute Tap 9/16"-24 UNEF H4 / 2B-3B Modified Bottoming Chamfer 3 Flute - Spiral-Flute Taps for Steel & Stainless Steel
OSGSpiral-Flute Taps for Steel & Stainless Steel

OSG Spiral-Flute Tap 9/16"-24 UNEF H4 / 2B-3B Modified Bottoming Chamfer 3 Flute

The OSG Spiral Flute Tap (9/16"-24 UNEF) is a spiral-flute tap for steel and stainless steel, featuring an H4 / 2B-3B tolerance, 3 flutes, and a modified bottoming chamfer (MPN 1650506208). 3G Electric interprets…

SKU 3G-OTH-218554

Brand
OSG
Item
Spiral-Flute Tap 9/16"-24 UNEF H4 / 2B-3B Modified Bottoming Chamfer 3 Flute
Category
Spiral-Flute Taps for Steel & Stainless Steel
Available to Order
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
1650506208
Type
H4 / 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

The OSG Spiral Flute Tap (9/16"-24 UNEF) is a spiral-flute tap for steel and stainless steel, featuring an H4 / 2B-3B tolerance, 3 flutes, and a modified bottoming chamfer (MPN 1650506208). 3G Electric interprets this demand and sources the genuine OSG product, supporting procurement across 14 industrial departments with specialist depth in cutting tools.

Frequently Asked Questions

What is the OSG spiral flute tap 9/16"-24 UNEF used for?

This OSG spiral flute tap is designed for threading steel and stainless steel. The 3-flute design with a modified bottoming chamfer efficiently evacuates chips upward, making it ideal for blind-hole threading applications where chip clearance is critical.

What are the specifications of the OSG spiral flute tap 9/16"-24 UNEF?

This tap has a 9/16"-24 UNEF thread size, H4 / 2B-3B tolerance, 3 flutes, and a modified bottoming chamfer. The OSG part number is 1650506208. It is designed for threading steel and stainless steel with precise fit control.

Where to buy the OSG spiral flute tap 9/16"-24 UNEF worldwide?

3G Electric supplies the OSG spiral flute tap 9/16"-24 UNEF worldwide. We handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time on this precision threading tool.

How to select the correct OSG spiral flute tap for steel?

For steel and stainless steel, choose a spiral flute tap with a modified bottoming chamfer like this OSG model. Ensure the thread size (9/16"-24 UNEF) and tolerance class (H4 / 2B-3B) match your application. Use proper cutting fluid and speed for best thread quality.

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 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

Compatible alternatives & equivalents

Cross-referenced by specification & description
Spiral-flute tap with modified bottoming chamfer and 4 flutes, designed for threading steel and stainless steel. Tolerance class H4 / 2B-3B. Suitable for through-hole and blind-hole applications in general machining
OSG
Spiral-flute tap with modified bottoming chamfer and 4 flutes, designed for threading steel and stainless steel. Tolerance class H4 / 2B-3B. Suitable for through-hole and blind-hole applications in general machining
Spiral-flute tap for threading blind holes in steel and stainless steel. Thread size 5/8"-24 UNEF, H4 / 2B-3B tolerance, 3-flute design, modified bottoming chamfer. The spiral flute evacuates chips upward, and the chamfer allows threading close to the hole bottom
OSG
Spiral-flute tap for threading blind holes in steel and stainless steel. Thread size 5/8"-24 UNEF, H4 / 2B-3B tolerance, 3-flute design, modified bottoming chamfer. The spiral flute evacuates chips upward, and the chamfer allows threading close to the hole bottom
Spiral-flute tap designed for threading blind holes in steel and stainless steel. The spiral flute geometry evacuates chips upward to prevent clogging. Features a modified bottoming chamfer for threading close to the hole bottom. Thread size: 1/2"-28 UNEF, tolerance H4 / 2B-3B, 3 flutes
OSG
Spiral-flute tap designed for threading blind holes in steel and stainless steel. The spiral flute geometry evacuates chips upward to prevent clogging. Features a modified bottoming chamfer for threading close to the hole bottom. Thread size: 1/2"-28 UNEF, tolerance H4 / 2B-3B, 3 flutes
OSG Spiral Flute Tap: 7/16"-28 UNEF, H4 / 2B-3B, 3 Flute, Modified Bottoming Chamfer (MPN 1650506008)
OSG
OSG Spiral Flute Tap: 7/16"-28 UNEF, H4 / 2B-3B, 3 Flute, Modified Bottoming Chamfer (MPN 1650506008)
Spiral-flute tap with 3 flutes, H4 / 2B-3B tolerance, and modified bottoming chamfer. Designed for threading blind holes in steel and stainless steel; the spiral flute evacuates chips upward to prevent clogging. Suitable for general manufacturing applications requiring precise UNF threads
OSG
Spiral-flute tap with 3 flutes, H4 / 2B-3B tolerance, and modified bottoming chamfer. Designed for threading blind holes in steel and stainless steel; the spiral flute evacuates chips upward to prevent clogging. Suitable for general manufacturing applications requiring precise UNF threads
Spiral-flute tap for threading steel and stainless steel. Features 3 flutes, H4 / 2B-3B tolerance, and a modified bottoming chamfer. The spiral flute design directs chips upward, making it suitable for blind-hole threading applications
OSG
Spiral-flute tap for threading steel and stainless steel. Features 3 flutes, H4 / 2B-3B tolerance, and a modified bottoming chamfer. The spiral flute design directs chips upward, making it suitable for blind-hole threading applications

More from OSG

View all OSG parts
This 4-flute spiral-flute tap features a modified bottoming chamfer and H3 / 2B-3B tolerance class. Designed for threading blind holes in steel and stainless steel, the spiral flute geometry evacuates chips upward, enabling efficient production threading and maintenance applications
OSG
This 4-flute spiral-flute tap features a modified bottoming chamfer and H3 / 2B-3B tolerance class. Designed for threading blind holes in steel and stainless steel, the spiral flute geometry evacuates chips upward, enabling efficient production threading and maintenance applications
OSG Spiral Flute Tap: M4.5x0.75 Metric, D4 / 4H, 3 Flute, Modified Bottoming Chamfer (MPN 1650004508)
OSG
OSG Spiral Flute Tap: M4.5x0.75 Metric, D4 / 4H, 3 Flute, Modified Bottoming Chamfer (MPN 1650004508)
Spiral-flute tap for threading blind holes in steel and stainless steel. Thread size 5/16"-18 UNC, tolerance H3 / 2B-3B, 3 flutes, bottoming chamfer. The spiral flute design evacuates chips upward, preventing clogging and ensuring clean threads in blind-hole applications
OSG
Spiral-flute tap for threading blind holes in steel and stainless steel. Thread size 5/16"-18 UNC, tolerance H3 / 2B-3B, 3 flutes, bottoming chamfer. The spiral flute design evacuates chips upward, preventing clogging and ensuring clean threads in blind-hole applications
Spiral-flute tap with 1/4"-28 UNF thread, H5 / 2B-3B tolerance, 3 flutes, and modified bottoming chamfer. Designed for threading blind holes in steel and stainless steel, the spiral flute design evacuates chips upward, facilitating chip removal in blind-hole applications
OSG
Spiral-flute tap with 1/4"-28 UNF thread, H5 / 2B-3B tolerance, 3 flutes, and modified bottoming chamfer. Designed for threading blind holes in steel and stainless steel, the spiral flute design evacuates chips upward, facilitating chip removal in blind-hole applications
Spiral-flute tap for threading blind holes in steel and stainless steel. 7/16-14 UNC thread, H3 / 2B-3B 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. 7/16-14 UNC thread, H3 / 2B-3B 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. Features a modified bottoming chamfer and 3 flutes for efficient chip evacuation. Tolerance H5 / 2B-3B. Thread size 1/2"-20 UNF
OSG
Spiral-flute tap for threading blind holes in steel and stainless steel. Features a modified bottoming chamfer and 3 flutes for efficient chip evacuation. Tolerance H5 / 2B-3B. Thread size 1/2"-20 UNF
OSG Spiral Flute Tap: 7/16"-14 UNC, H5 / 2B-3B, 3 Flute, Bottoming Chamfer, V Coated Powdered Metal (MPN 1650512208)
OSG
OSG Spiral Flute Tap: 7/16"-14 UNC, H5 / 2B-3B, 3 Flute, Bottoming Chamfer, V Coated Powdered Metal (MPN 1650512208)
Spiral-flute tap for threading blind holes in steel and stainless steel. Features 3 flutes, H5 / 2B-3B tolerance, and modified bottoming chamfer. Chip evacuation upward prevents clogging for clean threads. Suitable for general manufacturing applications requiring precise internal threads
OSG
Spiral-flute tap for threading blind holes in steel and stainless steel. Features 3 flutes, H5 / 2B-3B tolerance, and modified bottoming chamfer. Chip evacuation upward prevents clogging for clean threads. Suitable for general manufacturing applications requiring precise internal threads