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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 1430408) is a general-purpose spiral-flute tap with a H3 / 2B-3B tolerance, 3-flute design, plug chamfer, and TiCN-coated high-speed steel construction. 3G Electric sources…

SKU 3G-OTH-230080

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
1430408
Type
H3 / 2B-3B, Plug Chamfer, TiCN Coated 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 1430408) is a general-purpose spiral-flute tap with a H3 / 2B-3B tolerance, 3-flute design, plug chamfer, and TiCN-coated high-speed steel construction. 3G Electric sources this genuine OSG tool as part of our industrial supply across 14 departments, with specialist expertise in combustion, pumps, and controls.

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 ferrous and non-ferrous materials. The 3-flute design and TiCN coating reduce torque and improve chip evacuation, making it suitable for general-purpose tapping in automotive, aerospace, and general manufacturing applications.

What are the specifications of the OSG 1430408 tap?

The OSG 1430408 is a 5/16-18 UNC spiral flute tap with a H3 / 2B-3B tolerance, 3 flutes, and a plug chamfer. It is made of high-speed steel with a TiCN coating. The manufacturer part number is 1430408, and it is classified as a general-purpose spiral-flute tap.

Where to buy OSG taps in worldwide?

You can source OSG taps worldwide through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time on the OSG 1430408 spiral flute tap.

How to select the correct OSG tap for blind holes?

For blind holes, choose a spiral flute tap like this OSG 5/16-18 UNC model, which pushes chips forward and out of the hole. Ensure the tap has a plug chamfer and a coating like TiCN for improved wear resistance. Match the thread class (H3 / 2B-3B) to your application requirements.

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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