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OSG Spiral Flute Tap: 5/16"-24 UNF, H3 / 2B-3B, 3 Flute - General Purpose Spiral-Flute Taps
OSGGeneral Purpose Spiral-Flute Taps

OSG Spiral Flute Tap: 5/16"-24 UNF, H3 / 2B-3B, 3 Flute

The OSG Spiral Flute Tap (5/16"-24 UNF, MPN 2931201) is a general-purpose tap with an H3 / 2B-3B tolerance and a modified bottoming chamfer. It features 3 flutes for efficient chip evacuation in through-hole…

SKU 3G-OTH-231087

Brand
OSG
Item
Spiral Flute Tap: 5/16"-24 UNF, H3 / 2B-3B, 3 Flute
Category
General Purpose Spiral-Flute Taps
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Technical Specifications

OSG
Manufacturer Part Number
2931201
Type
H3 / 2B-3B, Modified Bottoming Chamfer
Flute
3
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OSG Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The OSG Spiral Flute Tap (5/16"-24 UNF, MPN 2931201) is a general-purpose tap with an H3 / 2B-3B tolerance and a modified bottoming chamfer. It features 3 flutes for efficient chip evacuation in through-hole threading applications.

Supplied to the Philippines — compatible with 60 Hz installations. DHL Express delivery to Manila, Quezon City, Cebu, customs and duties handled door-to-door.

Frequently Asked Questions

What is the OSG spiral flute tap 5/16-24 UNF used for?

This OSG spiral flute tap is designed for threading blind holes in materials such as steel and stainless steel. Its spiral flute design evacuates chips upward, preventing clogging. The modified bottoming chamfer allows threading close to the bottom of the hole. It is commonly used in automotive and general manufacturing applications.

What are the specifications of the OSG spiral flute tap 5/16-24 UNF?

This OSG tap has a thread size of 5/16-24 UNF, with a H3 / 2B-3B tolerance class. It features 3 flutes and a modified bottoming chamfer. The manufacturer part number is 2931201. It is a general purpose spiral-flute tap suitable for blind hole threading in various materials.

Where to buy OSG taps in worldwide?

You can source OSG taps worldwide through 3G Electric, a global industrial equipment distributor established in 1990. We handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time. We supply genuine OSG cutting tools for manufacturing and maintenance needs.

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

Select an OSG spiral flute tap based on thread size, pitch, and tolerance class matching your application. For blind holes, choose a tap with a modified bottoming chamfer to thread close to the hole bottom. Ensure the tap material suits your workpiece material. Consult OSG technical data for recommended speeds and feeds.

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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