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: 3/8"-24 UNF, 2B, 3 Flute, Bottoming Chamfer - General Purpose Spiral-Flute Taps
OSGGeneral Purpose Spiral-Flute Taps

OSG Spiral Flute Tap: 3/8"-24 UNF, 2B, 3 Flute, Bottoming Chamfer

The OSG Spiral Flute Tap (3/8"-24 UNF, MPN 2986101) is a general-purpose spiral-flute tap with a 2B thread class, bottoming chamfer, and black oxide high-speed steel construction. Featuring 3 flutes, it is designed…

SKU 3G-OTH-231120

Brand
OSG
Item
Spiral Flute Tap: 3/8"-24 UNF, 2B, 3 Flute, Bottoming Chamfer
Category
General Purpose Spiral-Flute Taps
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
2986101
Type
2B, Bottoming Chamfer, Black Oxide High Speed Steel
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 (3/8"-24 UNF, MPN 2986101) is a general-purpose spiral-flute tap with a 2B thread class, bottoming chamfer, and black oxide high-speed steel construction. Featuring 3 flutes, it is designed for threading blind holes in a range of materials. 3G Electric interprets your demand for this OSG tap and delivers it as part of our broad industrial supply across 14 departments, with specialist depth in cutting tools and machining.

Frequently Asked Questions

What is the OSG spiral flute tap 2986101 used for?

The OSG spiral flute tap 2986101 is used for threading blind holes in materials like steel and aluminum. Its spiral flute design lifts chips upward, preventing clogging, making it ideal for automotive, aerospace, and general manufacturing applications where clean threads are required.

What are the specifications of the OSG spiral flute tap 2986101?

The OSG spiral flute tap 2986101 has a 3/8"-24 UNF thread size, 2B class of fit, 3 flutes, a bottoming chamfer, and is made of black oxide high speed steel. It is designed for general purpose threading in blind holes and is manufactured under part number 2986101.

Where to buy OSG spiral flute tap 2986101 worldwide?

You can source the OSG spiral flute tap 2986101 through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations, ensuring you receive the correct threading tool for your operations.

How to select the correct OSG spiral flute tap for blind holes?

To select the correct OSG spiral flute tap for blind holes, match the thread size (e.g., 3/8"-24 UNF), class of fit (2B), and chamfer type (bottoming) to your application. OSG taps with black oxide coating reduce friction and improve chip evacuation in steel and aluminum.

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 general purpose spiral-flute taps. 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
OSG Spiral Flute Tap: 1/2"-20 UNF, 2B, 3 Flute, Bottoming Chamfer, Black Oxide High Speed Steel (MPN 2986301)
OSG
OSG Spiral Flute Tap: 1/2"-20 UNF, 2B, 3 Flute, Bottoming Chamfer, Black Oxide High Speed Steel (MPN 2986301)
General purpose spiral-flute tap for threading blind holes in ferrous and non-ferrous materials. Features a bottoming chamfer for threading to the bottom of blind holes, and 3 flutes for upward chip evacuation. Made from black oxide high-speed steel for wear resistance and reduced friction. Thread size 3/8"-16 UNC, class 2B fit
OSG
General purpose spiral-flute tap for threading blind holes in ferrous and non-ferrous materials. Features a bottoming chamfer for threading to the bottom of blind holes, and 3 flutes for upward chip evacuation. Made from black oxide high-speed steel for wear resistance and reduced friction. Thread size 3/8"-16 UNC, class 2B fit
OSG Spiral Flute Tap: 1/4"-20 UNC, 2B, 3 Flute, Bottoming Chamfer, Black Oxide High Speed Steel (MPN 2985601)
OSG
OSG Spiral Flute Tap: 1/4"-20 UNC, 2B, 3 Flute, Bottoming Chamfer, Black Oxide High Speed Steel (MPN 2985601)
This spiral-flute tap is designed for threading blind holes in ferrous materials. The spiral flute geometry lifts chips upward, reducing clogging and producing clean threads. It features a bottoming chamfer for threading to the bottom of the hole. Made from black oxide high-speed steel for wear resistance and improved lubricity
OSG
This spiral-flute tap is designed for threading blind holes in ferrous materials. The spiral flute geometry lifts chips upward, reducing clogging and producing clean threads. It features a bottoming chamfer for threading to the bottom of the hole. Made from black oxide high-speed steel for wear resistance and improved lubricity
OSG Spiral Flute Tap: 1/4"-28 UNF, 2B, 3 Flute, Bottoming Chamfer, Black Oxide High Speed Steel (MPN 2985701)
OSG
OSG Spiral Flute Tap: 1/4"-28 UNF, 2B, 3 Flute, Bottoming Chamfer, Black Oxide High Speed Steel (MPN 2985701)
OSG Spiral Flute Tap: #10-32 UNF, 2B, 3 Flute, Bottoming Chamfer, Black Oxide High Speed Steel (MPN 2985501)
OSG
OSG Spiral Flute Tap: #10-32 UNF, 2B, 3 Flute, Bottoming Chamfer, Black Oxide High Speed Steel (MPN 2985501)

More from OSG

View all OSG parts
General purpose spiral-flute tap for threading blind holes in steel and aluminum. Spiral flute design evacuates chips upward to prevent clogging. Thread size 1/4"-28 UNF, class 2B fit, bottoming chamfer, 3 flutes, high-speed steel construction
OSG
General purpose spiral-flute tap for threading blind holes in steel and aluminum. Spiral flute design evacuates chips upward to prevent clogging. Thread size 1/4"-28 UNF, class 2B fit, bottoming chamfer, 3 flutes, high-speed steel construction
General purpose spiral-flute tap for threading blind holes in ferrous and non-ferrous materials. Features a modified bottoming chamfer and 4 flutes to evacuate chips upward, suitable for deep or blind-hole tapping. Tolerance class D6 / 4H-6H. Metric thread size M27x1.5
OSG
General purpose spiral-flute tap for threading blind holes in ferrous and non-ferrous materials. Features a modified bottoming chamfer and 4 flutes to evacuate chips upward, suitable for deep or blind-hole tapping. Tolerance class D6 / 4H-6H. Metric thread size M27x1.5
High-speed steel spiral-flute tap with 5/8"-18 UNF thread, H3 / 2B-3B tolerance, plug chamfer, and 4 flutes. Designed for general-purpose threading of blind holes in steel and stainless steel; the spiral flute lifts chips upward to prevent clogging
OSG
High-speed steel spiral-flute tap with 5/8"-18 UNF thread, H3 / 2B-3B tolerance, plug chamfer, and 4 flutes. Designed for general-purpose threading of blind holes in steel and stainless steel; the spiral flute lifts chips upward to prevent clogging
General purpose spiral-flute tap for threading blind holes. The spiral flute design lifts chips upward to prevent clogging. Thread size 5/16"-18 UNC, 2B class of fit, 3 flutes, modified bottoming chamfer. Suitable for steel and stainless steel in general manufacturing
OSG
General purpose spiral-flute tap for threading blind holes. The spiral flute design lifts chips upward to prevent clogging. Thread size 5/16"-18 UNC, 2B class of fit, 3 flutes, modified bottoming chamfer. Suitable for steel and stainless steel in general manufacturing
General purpose spiral-flute tap for threading blind holes in metal. M12x1.75 metric thread, 6H tolerance, bottoming chamfer, 3-flute design, high-speed steel construction. Spiral flute lifts chips upward to prevent clogging
OSG
General purpose spiral-flute tap for threading blind holes in metal. M12x1.75 metric thread, 6H tolerance, bottoming chamfer, 3-flute design, high-speed steel construction. Spiral flute lifts chips upward to prevent clogging
General purpose spiral-flute tap for threading blind holes in ferrous and non-ferrous materials. Thread size 5/8"-18 UNF with H3 / 2B-3B tolerance. Features 4 flutes for upward chip evacuation and a modified bottoming chamfer for threading close to the bottom of blind holes
OSG
General purpose spiral-flute tap for threading blind holes in ferrous and non-ferrous materials. Thread size 5/8"-18 UNF with H3 / 2B-3B tolerance. Features 4 flutes for upward chip evacuation and a modified bottoming chamfer for threading close to the bottom of blind holes
This spiral-flute tap is designed for threading blind holes, with a modified bottoming chamfer that allows threading close to the hole bottom. The 3-flute geometry lifts chips upward, preventing clogging and ensuring clean threads. Suitable for general-purpose threading in steel and stainless steel applications
OSG
This spiral-flute tap is designed for threading blind holes, with a modified bottoming chamfer that allows threading close to the hole bottom. The 3-flute geometry lifts chips upward, preventing clogging and ensuring clean threads. Suitable for general-purpose threading in steel and stainless steel applications
General purpose spiral-flute tap for threading blind holes. #10-32 UNF thread size with H3 / 2B-3B tolerance. 3 flutes and bottoming chamfer design. Suitable for steel, stainless steel, and aluminum
OSG
General purpose spiral-flute tap for threading blind holes. #10-32 UNF thread size with H3 / 2B-3B tolerance. 3 flutes and bottoming chamfer design. Suitable for steel, stainless steel, and aluminum