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

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

The OSG Spiral Flute Tap (5/16"-18 UNC, MPN 1430400) is a general-purpose spiral-flute tap with H3 / 2B-3B tolerance, 3 flutes, plug chamfer, and high-speed steel construction. 3G Electric interprets your demand for…

SKU 3G-OTH-229900

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

OSG
Manufacturer Part Number
1430400
Type
H3 / 2B-3B, Plug Chamfer, High Speed Steel
Flute
3
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OSG Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The OSG Spiral Flute Tap (5/16"-18 UNC, MPN 1430400) is a general-purpose spiral-flute tap with H3 / 2B-3B tolerance, 3 flutes, plug chamfer, and high-speed steel construction. 3G Electric interprets your demand for this OEM-specified tool and delivers it across 14 industrial departments — with specialist depth in combustion, pumps, and controls as a trust anchor, not a limit.

Frequently Asked Questions

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

This OSG spiral flute tap is used for threading blind holes in materials such as steel and aluminum. The spiral flute design pulls chips upward, preventing clogging. It is ideal for general-purpose tapping in manufacturing and maintenance applications.

What are the specifications of the OSG spiral flute tap 5/16-18 UNC?

The OSG spiral flute tap has a 5/16-18 UNC thread size, H3 / 2B-3B tolerance, 3 flutes, and a plug chamfer. It is made of high-speed steel (HSS) and carries manufacturer part number 1430400. It is designed for general-purpose threading.

Where to buy the OSG spiral flute tap 5/16-18 UNC worldwide?

You can source the OSG spiral flute tap 5/16-18 UNC worldwide through 3G Electric. We handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time.

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

Select an OSG spiral flute tap with a plug chamfer for blind holes, as it starts threading closer to the bottom. Ensure the thread size (e.g., 5/16-18 UNC) and tolerance (H3 / 2B-3B) match your application. Use high-speed steel for general-purpose materials.

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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