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OSG Spiral Point Tap: 5/16"-24 UNF, 3B, 3 Flute, Plug Chamfer - General Purpose Spiral-Point Taps
OSGGeneral Purpose Spiral-Point Taps

OSG Spiral Point Tap: 5/16"-24 UNF, 3B, 3 Flute, Plug Chamfer

SKU 3G-OTH-214178

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

OSG
Manufacturer Part Number
2880900
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OSG Products
3G Electric (S) Pte. Ltd. — Singapore

Frequently Asked Questions

What is the OSG Spiral Point Tap 5/16"-24 UNF used for?

The OSG Spiral Point Tap is designed for through-hole threading in production environments. Its spiral-point geometry pushes chips forward, reducing chip clogging and tap breakage. It is commonly used in automotive, aerospace, and general manufacturing for creating precise UNF threads in steel, aluminum, and alloys.

What are the specifications of the OSG Spiral Point Tap 5/16"-24 UNF?

This OSG tap has a 5/16"-24 UNF thread size, a 3B class fit, 3 flutes, and a plug chamfer. It is made from high-speed steel (HSS) for durability. The manufacturer part number is 2880900, and it is designed for through-hole tapping in materials up to 850 °C hardness.

Where to buy the OSG Spiral Point Tap 5/16"-24 UNF worldwide?

3G Electric supplies the OSG Spiral Point Tap 5/16"-24 UNF worldwide. As a global industrial distributor since 1990, we handle full logistics, customs clearance, and delivery to your facility. Contact us for availability and lead time; we source and deliver this OSG tap to any country.

How to select the correct OSG Spiral Point Tap for UNF threads?

Select the OSG Spiral Point Tap based on thread size (e.g., 5/16"-24 UNF), class fit (3B for precision), and material. For through-holes, a plug chamfer and 3-flute design work well. Match the tap to your workpiece hardness; OSG HSS taps suit general-purpose steel and aluminum. Always verify the manufacturer part number 2880900 for exact specs.

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-point taps. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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