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

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

SKU 3G-OTH-215970

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

OSG
Manufacturer Part Number
1230901
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OSG Products
3G Electric (S) Pte. Ltd. — Singapore

Frequently Asked Questions

What is OSG Spiral Point Tap 5/16"-18 UNC used for?

This OSG spiral point tap is used for threading blind or through holes in ferrous and non-ferrous materials. Its 2-flute design and bottoming chamfer allow chip evacuation forward, making it ideal for production tapping in machining, automotive, and general manufacturing applications.

What are the specifications of OSG tap MPN 1230901?

The OSG spiral point tap MPN 1230901 has a 5/16"-18 UNC thread, H3 / 2B-3B tolerance, 2 flutes, and a bottoming chamfer. It is a general purpose tap designed for consistent thread quality in CNC and manual operations.

Where to buy OSG spiral point taps worldwide?

3G Electric supplies OSG spiral point taps like MPN 1230901 worldwide. We handle full logistics, customs clearance, and delivery to your facility. Contact us for pricing and lead time on this and other OSG threading tools.

How to select the right OSG tap for UNC threads?

Select an OSG tap based on thread size (e.g., 5/16"-18 UNC), chamfer type (bottoming for blind holes), and tolerance class (H3 for general use). Ensure the tap matches your material and machine type. 3G Electric can help you source the correct OSG tap for your application.

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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