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

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

SKU 3G-OTH-230852

Brand
OSG
Item
Spiral Flute Tap: 7/16"-20 UNF, 2B, 3 Flute, Bottoming Chamfer
Category
General Purpose Spiral-Flute Taps
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Technical Specifications

OSG
Manufacturer Part Number
2987005
Type
2B, Bottoming Chamfer, TiN Coated High Speed Steel
Flute
3
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OSG Products
3G Electric (S) Pte. Ltd. — Singapore

Frequently Asked Questions

What is OSG spiral flute tap 2987005 used for?

This OSG spiral flute tap is designed for threading blind holes in steel and non-ferrous materials. Its TiN coating reduces friction and extends tool life, while the bottoming chamfer allows threading close to the hole bottom. It is commonly used in automotive, aerospace, and general machining applications.

What are the specifications of OSG tap 2987005?

The OSG tap 2987005 is a 7/16"-20 UNF, 2B class fit, with 3 flutes and a bottoming chamfer. It is made from TiN coated high speed steel. This spiral flute design efficiently evacuates chips upward, making it ideal for blind hole threading.

Where to buy OSG spiral flute tap 2987005 worldwide?

3G Electric supplies and delivers the OSG spiral flute tap 2987005 worldwide. As a global industrial solutions provider, we handle full logistics and customs clearance to ensure your order arrives at your facility. Contact us for availability and lead time.

How to select the correct OSG tap for blind holes?

For blind holes, choose a spiral flute tap with a bottoming chamfer, like this OSG 2987005. The spiral flutes push chips out of the hole, preventing clogging. Ensure the tap size matches your thread specification (UNF 7/16"-20) and that the coating suits your workpiece material.

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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