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OSG Spiral Flute Tap: 9/16"-18 UNF, H3 / 2B-3B, 4 Flute - General Purpose Spiral-Flute Taps
OSGGeneral Purpose Spiral-Flute Taps

OSG Spiral Flute Tap: 9/16"-18 UNF, H3 / 2B-3B, 4 Flute

The OSG Spiral Flute Tap (9/16"-18 UNF) is a general-purpose tap with a Modified Bottoming Chamfer, 4 flutes, and H3 / 2B-3B tolerance class (MPN 2948808). 3G Electric sources this genuine OSG tool for your threading…

SKU 3G-OTH-230545

Brand
OSG
Item
Spiral Flute Tap: 9/16"-18 UNF, H3 / 2B-3B, 4 Flute
Category
General Purpose Spiral-Flute Taps
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Technical Specifications

OSG
Manufacturer Part Number
2948808
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 (9/16"-18 UNF) is a general-purpose tap with a Modified Bottoming Chamfer, 4 flutes, and H3 / 2B-3B tolerance class (MPN 2948808). 3G Electric sources this genuine OSG tool for your threading applications, backed by our specialist expertise across 14 industrial departments.

Frequently Asked Questions

What is the OSG spiral flute tap 9/16"-18 UNF used for?

This OSG spiral flute tap is used for threading blind holes in materials such as steel and stainless steel. Its spiral flute design evacuates chips upward, making it ideal for general-purpose threading where chip clearance is critical. The modified bottoming chamfer allows threading close to the bottom of the hole.

What are the specifications of the OSG spiral flute tap MPN 2948808?

The OSG spiral flute tap MPN 2948808 has a thread size of 9/16"-18 UNF, with a H3 / 2B-3B tolerance class. It features 4 flutes and a modified bottoming chamfer. This tap is designed for general-purpose threading and is suitable for producing threads in blind holes.

Where to buy OSG taps in worldwide?

You can source OSG taps, including the spiral flute tap MPN 2948808, through 3G Electric. As a global industrial equipment distributor, 3G Electric handles full logistics, customs clearance, and delivery to worldwide locations. Contact us for availability and lead time on this item.

How to select the correct OSG tap for a threading application?

To select the correct OSG tap, match the thread size and pitch (e.g., 9/16"-18 UNF) to your hole specifications. Choose a spiral flute design for blind holes to aid chip evacuation. The H3 / 2B-3B tolerance ensures proper fit. Consult OSG's technical data for material-specific recommendations.

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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