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OSG Spiral Point Tap: 5/16"-18 UNC, H3 / 2B-3B, 3 Flute - General Purpose Spiral-Point Taps
OSGGeneral Purpose Spiral-Point Taps

OSG Spiral Point Tap: 5/16"-18 UNC, H3 / 2B-3B, 3 Flute

SKU 3G-OTH-215245

Brand
OSG
Item
Spiral Point Tap: 5/16"-18 UNC, H3 / 2B-3B, 3 Flute
Category
General Purpose Spiral-Point Taps
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Technical Specifications

OSG
Manufacturer Part Number
2830808
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OSG Products
3G Electric (S) Pte. Ltd. — Singapore

Frequently Asked Questions

What is the OSG spiral point tap 2830808 used for?

The OSG spiral point tap 2830808 is designed for through-hole threading in ferrous and non-ferrous materials. Its spiral point pushes chips ahead, reducing clogging and breakage. Common applications include automotive, aerospace, and general manufacturing where clean, accurate UNC threads are required.

What are the specifications of the OSG 2830808 tap?

This OSG spiral point tap has a 5/16"-18 UNC thread size, H3 / 2B-3B tolerance, 3 flutes, and a plug chamfer. The H3 limit ensures precise fit for class 2B or 3B threads. It is a general-purpose tap for through-hole threading in production environments.

Where to buy OSG taps in worldwide?

3G Electric supplies OSG taps like the 2830808 to customers worldwide. We handle full logistics, customs clearance, and delivery to your site. As a global industrial sourcing partner, we provide genuine OSG cutting tools for manufacturing and maintenance operations across all regions.

How to select the correct OSG tap for UNC threads?

Select an OSG tap based on thread size (e.g., 5/16"-18 UNC), tolerance class (H3 for 2B/3B fit), and tap style. Spiral point taps suit through holes; spiral flute taps work for blind holes. Always match the chamfer type (plug, bottoming, or taper) to your hole depth and 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-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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