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

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

SKU 3G-OTH-230998

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

OSG
Manufacturer Part Number
1430508
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OSG Products
3G Electric (S) Pte. Ltd. — Singapore

Frequently Asked Questions

What is the OSG spiral flute tap 5/16-18 UNC used for?

This OSG spiral flute tap is designed for threading blind holes in materials like steel and aluminum. Its 3-flute design and bottoming chamfer allow chip evacuation upward, making it ideal for general-purpose tapping in machining, automotive, and industrial maintenance applications.

What are the specifications of the OSG 1430508 tap?

The OSG 1430508 is a spiral flute tap with size 5/16-18 UNC, H3 / 2B-3B tolerance, 3 flutes, and a bottoming chamfer. It is a general-purpose tap suitable for threading blind holes, with dimensions and geometry optimized for consistent thread quality in production environments.

Where to buy OSG taps like 1430508 worldwide?

3G Electric supplies OSG taps including the 1430508 to customers worldwide. We handle full logistics, customs clearance, and delivery to your facility. Contact us for pricing and lead time on this spiral flute tap for your industrial threading needs.

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

For blind holes, choose a spiral flute tap like the OSG 1430508 with a bottoming chamfer to thread close to the hole bottom. Ensure the tap size matches your thread specification (e.g., 5/16-18 UNC) and consider material hardness to select the correct H tolerance class.

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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