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OSG Spiral Flute Tap: 5/8"-18 UNF, H3 / 2B-3B, 4 Flute - General Purpose Spiral-Flute Taps
OSGGeneral Purpose Spiral-Flute Taps

OSG Spiral Flute Tap: 5/8"-18 UNF, H3 / 2B-3B, 4 Flute

The OSG Spiral Flute Tap (5/8"-18 UNF) is a general-purpose tap with a modified bottoming chamfer, 4 flutes, and H3 / 2B-3B tolerance class (MPN 2933400). 3G Electric interprets demand and sources this genuine…

SKU 3G-OTH-230698

Brand
OSG
Item
Spiral Flute Tap: 5/8"-18 UNF, H3 / 2B-3B, 4 Flute
Category
General Purpose Spiral-Flute Taps
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Technical Specifications

OSG
Manufacturer Part Number
2933400
Type
H3 / 2B-3B, Modified Bottoming Chamfer
Flute
4
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OSG Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The OSG Spiral Flute Tap (5/8"-18 UNF) is a general-purpose tap with a modified bottoming chamfer, 4 flutes, and H3 / 2B-3B tolerance class (MPN 2933400). 3G Electric interprets demand and sources this genuine industrial tool across 14 departments — with specialist depth in combustion, pumps, and controls — ensuring you get the right answer, not just a catalog.

Frequently Asked Questions

What is the OSG spiral flute tap 5/8"-18 UNF used for?

This OSG spiral flute tap is designed for threading blind holes in ferrous and non-ferrous materials. Its 4-flute design and modified bottoming chamfer efficiently evacuate chips upward, making it ideal for automotive, aerospace, and general manufacturing applications requiring precise UNF threads.

What are the specifications of the OSG spiral flute tap MPN 2933400?

The OSG spiral flute tap MPN 2933400 has a thread size of 5/8"-18 UNF, with a H3 / 2B-3B tolerance class. It features 4 flutes and a modified bottoming chamfer for blind-hole threading. This general-purpose tap is suitable for producing threads in a range of materials.

Where to buy OSG taps in worldwide?

You can source OSG taps, including the spiral flute tap MPN 2933400, through 3G Electric. As a global industrial equipment distributor since 1990, we handle full logistics, customs clearance, and delivery to worldwide destinations, ensuring reliable supply for your threading needs.

How to select the correct OSG tap for blind holes?

For blind holes, choose a spiral flute tap like this OSG model, which pushes chips upward. Verify thread size (5/8"-18 UNF), chamfer type (modified bottoming), and tolerance (H3 / 2B-3B) match your application. Consult OSG's technical data for material-specific recommendations to ensure optimal 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 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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