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OSG Spiral Point Tap: 5/16"-18 UNC, 2B+, 2 Flute, Plug Chamfer - Oversized Spiral-Point Taps
OSGOversized Spiral-Point Taps

OSG Spiral Point Tap: 5/16"-18 UNC, 2B+, 2 Flute, Plug Chamfer

OSG Oversized Spiral-Point Taps.

SKU 3G-OTH-251327

Brand
OSG
Item
Spiral Point Tap: 5/16"-18 UNC, 2B+, 2 Flute, Plug Chamfer
Category
Oversized Spiral-Point Taps
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Local availability & support

Delivery
Worldwide DHL shipping from Singapore; 7–14 business days door-to-door for most destinations.
Payment
Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.

Technical Specifications

OSG
Manufacturer Part Number
1590800

Technical Documents

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OSG Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

OSG Oversized Spiral-Point Taps.

Frequently Asked Questions

What is an OSG spiral point tap used for?

An OSG spiral point tap is used for through-hole threading in metalworking. Its spiral point design pushes chips forward, preventing clogging and enabling faster, cleaner thread cutting in production environments across industries like automotive and aerospace.

What are the specifications of the OSG 1590800 tap?

The OSG 1590800 is a 5/16"-18 UNC spiral point tap with a 2B+ tolerance, 2 flutes, and a plug chamfer. It is made from high-speed steel and is oversized for achieving tighter thread fits in demanding applications.

Where to buy OSG taps in worldwide?

3G Electric supplies OSG taps like the 1590800 to worldwide locations. We handle full logistics and customs clearance, sourcing genuine industrial equipment across 14 departments. Contact us for pricing and delivery to your region.

How to select the right OSG tap for a job?

Select an OSG tap based on thread size, pitch, material, and hole type. For through holes, a spiral point tap like the 5/16"-18 UNC is ideal. Match the tap tolerance (e.g., 2B+) to your required thread class and use cutting fluid for best results.

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 oversized 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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