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OSG Spiral Flute Tap: 7/16"-20 UNF, H3 / 2B-3B, 3 Flute, Plug Chamfer - General Purpose Spiral-Flute Taps
OSGGeneral Purpose Spiral-Flute Taps

OSG Spiral Flute Tap: 7/16"-20 UNF, H3 / 2B-3B, 3 Flute, Plug Chamfer

The OSG Spiral Flute Tap (7/16"-20 UNF) is a general-purpose tap with a TiCN-coated high-speed steel construction, featuring a plug chamfer and three flutes. It is rated H3 / 2B-3B (MPN 1431608), designed for…

SKU 3G-OTH-230492

Brand
OSG
Item
Spiral Flute Tap: 7/16"-20 UNF, H3 / 2B-3B, 3 Flute, Plug Chamfer
Category
General Purpose Spiral-Flute Taps
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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
1431608
Type
H3 / 2B-3B, Plug Chamfer, TiCN Coated High Speed Steel
Flute
3

Technical Documents

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

Product Description

The OSG Spiral Flute Tap (7/16"-20 UNF) is a general-purpose tap with a TiCN-coated high-speed steel construction, featuring a plug chamfer and three flutes. It is rated H3 / 2B-3B (MPN 1431608), designed for threading applications requiring a 2B-3B class fit.

Frequently Asked Questions

What is the OSG spiral flute tap 7/16"-20 UNF used for?

This OSG spiral flute tap is used for threading blind holes in materials such as steel and stainless steel. Its TiCN coating and plug chamfer design help evacuate chips upward, making it ideal for general-purpose tapping in automotive, aerospace, and industrial manufacturing applications.

What are the specifications of the OSG spiral flute tap 7/16"-20 UNF?

The OSG spiral flute tap has a 7/16"-20 UNF thread size, H3 / 2B-3B tolerance, 3 flutes, plug chamfer, and TiCN coated high speed steel construction. The manufacturer part number is 1431608. It is designed for general-purpose threading of blind holes in ferrous materials.

Where to buy the OSG spiral flute tap 7/16"-20 UNF worldwide?

You can source the OSG spiral flute tap 7/16"-20 UNF worldwide through 3G Electric. As a global industrial equipment distributor, 3G Electric handles full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time on this OSG tap.

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., 7/16"-20 UNF) and tolerance class (H3 / 2B-3B) to your application. Choose a plug chamfer for general blind hole tapping and a TiCN coating for improved wear resistance in steel. Always verify material compatibility with OSG specifications.

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.

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OSG Spiral Flute Tap: 7/16"-20 UNF, H3 / 2B-3B, 3 Flute, Plug Chamfer, TiN Coated High Speed Steel (MPN 1431605)
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This OSG spiral-flute tap is designed for threading blind holes in ferrous and non-ferrous materials. The spiral flute design evacuates chips upward to prevent clogging. Made from TiCN-coated high-speed steel, it offers extended tool life. Suitable for general manufacturing applications requiring H3 / 2B-3B tolerance class
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This OSG spiral-flute tap is designed for threading blind holes in ferrous and non-ferrous materials. The spiral flute design evacuates chips upward to prevent clogging. Made from TiCN-coated high-speed steel, it offers extended tool life. Suitable for general manufacturing applications requiring H3 / 2B-3B tolerance class
General purpose spiral-flute tap for threading blind holes. Features a TiCN coating on high speed steel for reduced friction and wear. Plug chamfer and 3-flute design aid chip evacuation upward. Thread size 7/16"-14 UNC, tolerance H3 / 2B-3B
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General purpose spiral-flute tap for threading blind holes. Features a TiCN coating on high speed steel for reduced friction and wear. Plug chamfer and 3-flute design aid chip evacuation upward. Thread size 7/16"-14 UNC, tolerance H3 / 2B-3B
OSG Spiral Flute Tap: 5/16"-24 UNF, H3 / 2B-3B, 3 Flute, Plug Chamfer, TiN Coated High Speed Steel (MPN 1430605)
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OSG Spiral Flute Tap: 5/16"-24 UNF, H3 / 2B-3B, 3 Flute, Plug Chamfer, TiN Coated High Speed Steel (MPN 1430605)
General purpose spiral-flute tap for threading blind holes in ferrous and non-ferrous materials. Features TiN coated high-speed steel construction, H3 / 2B-3B tolerance, plug chamfer, and 3 flutes. The spiral flute design evacuates chips upward, suitable for applications requiring chip clearance
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General purpose spiral-flute tap for threading blind holes in ferrous and non-ferrous materials. Features TiN coated high-speed steel construction, H3 / 2B-3B tolerance, plug chamfer, and 3 flutes. The spiral flute design evacuates chips upward, suitable for applications requiring chip clearance

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This spiral-flute tap is designed for threading blind holes in materials such as steel and aluminum. The spiral flute geometry evacuates chips upward, preventing clogging and ensuring clean threads. The TiN coating reduces friction and extends tool life. Suitable for general-purpose tapping in manufacturing and maintenance applications
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This OSG spiral-flute tap is designed for general-purpose threading of blind holes. The spiral flute design evacuates chips upward, preventing clogging. It features a modified bottoming chamfer for threading close to the bottom of the hole. Suitable for use in steel and stainless steel in manufacturing and maintenance applications