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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
Available to Order
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Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Delivery
Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
Ships to
Singapore

Technical Specifications

OSG
Manufacturer Part Number
1430400
Type
H3 / 2B-3B, Plug Chamfer, High Speed Steel
Flute
3

Technical Documents

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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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Compatible alternatives & equivalents

Cross-referenced by specification & description
OSG Spiral Flute Tap: 1/4"-20 UNC, H3 / 2B-3B, 3 Flute, Plug Chamfer, High Speed Steel (MPN 1430000)
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OSG Spiral Flute Tap: 1/4"-20 UNC, H3 / 2B-3B, 3 Flute, Plug Chamfer, High Speed Steel (MPN 1430000)
OSG Spiral Flute Tap: 5/8"-18 UNF, H3 / 2B-3B, 4 Flute, Plug Chamfer, High Speed Steel (MPN 1433200)
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OSG Spiral Flute Tap: 5/8"-18 UNF, H3 / 2B-3B, 4 Flute, Plug Chamfer, High Speed Steel (MPN 1433200)
OSG Spiral Flute Tap: 5/16"-18 UNC, H3 / 2B-3B, 3 Flute, Plug Chamfer, Black Oxide High Speed Steel (MPN 1430401)
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OSG Spiral Flute Tap: 5/16"-18 UNC, H3 / 2B-3B, 3 Flute, Plug Chamfer, Black Oxide High Speed Steel (MPN 1430401)
OSG Spiral Flute Tap: 3/8"-16 UNC, H3 / 2B-3B, 3 Flute, Plug Chamfer, High Speed Steel (MPN 1430800)
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OSG Spiral Flute Tap: 3/8"-16 UNC, H3 / 2B-3B, 3 Flute, Plug Chamfer, High Speed Steel (MPN 1430800)
OSG Spiral Flute Tap: 5/8"-11 UNC, H3 / 2B-3B, 4 Flute, Plug Chamfer, High Speed Steel (MPN 1432800)
OSG
OSG Spiral Flute Tap: 5/8"-11 UNC, H3 / 2B-3B, 4 Flute, Plug Chamfer, High Speed Steel (MPN 1432800)
This OSG spiral-flute tap is designed for threading blind holes in materials such as steel and aluminum. Its spiral flute design lifts chips upward, preventing clogging and ensuring clean threads. Suitable for general manufacturing applications requiring #10-24 UNC threads
OSG
This OSG spiral-flute tap is designed for threading blind holes in materials such as steel and aluminum. Its spiral flute design lifts chips upward, preventing clogging and ensuring clean threads. Suitable for general manufacturing applications requiring #10-24 UNC threads

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General purpose spiral-flute tap for threading blind holes in ferrous and non-ferrous materials. Features a modified bottoming chamfer and 3 flutes to evacuate chips upward, preventing clogging in deep or blind applications. Tolerance H3 / 2B-3B. Thread size #12-28 UNF
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General purpose spiral-flute tap for threading blind holes in ferrous and non-ferrous materials. Features a modified bottoming chamfer and 3 flutes to evacuate chips upward, preventing clogging in deep or blind applications. Tolerance H3 / 2B-3B. Thread size #12-28 UNF
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General purpose spiral-flute tap for threading blind holes. Bottoming chamfer allows threading close to hole bottom. TiN-coated high-speed steel construction. Thread size #3-56 UNF, class of fit 2B-3B, 2 flutes
General purpose spiral-flute tap for threading blind holes in ferrous and non-ferrous materials. The spiral flute design evacuates chips upward, enabling effective bottoming applications. Thread size 5/8"-11 UNC, tolerance H3 / 2B-3B, with 4 flutes and bottoming chamfer
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General purpose spiral-flute tap for threading blind holes in ferrous and non-ferrous materials. The spiral flute design evacuates chips upward, enabling effective bottoming applications. Thread size 5/8"-11 UNC, tolerance H3 / 2B-3B, with 4 flutes and bottoming chamfer
General purpose spiral-flute tap for threading blind holes. Made of high-speed steel with a plug chamfer and 3 flutes. The spiral flute design lifts chips upward to prevent clogging. Suitable for use in steel and aluminum
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General purpose spiral-flute tap for threading blind holes. Made of high-speed steel with a plug chamfer and 3 flutes. The spiral flute design lifts chips upward to prevent clogging. Suitable for use in steel and aluminum
General purpose spiral-flute tap with 1/4"-20 UNC thread size, H3 / 2B-3B tolerance, 3 flutes, and modified bottoming chamfer. Designed for threading blind holes, the spiral flute lifts chips upward to prevent clogging and ensure clean threads. Suitable for general-purpose tapping in manufacturing and maintenance applications
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General purpose spiral-flute tap with 1/4"-20 UNC thread size, H3 / 2B-3B tolerance, 3 flutes, and modified bottoming chamfer. Designed for threading blind holes, the spiral flute lifts chips upward to prevent clogging and ensure clean threads. Suitable for general-purpose tapping in manufacturing and maintenance applications
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This spiral-flute tap is designed for threading blind holes in ferrous and non-ferrous materials. Its spiral flute geometry evacuates chips upward, preventing clogging and ensuring clean threads. Suitable for general-purpose tapping applications where chip removal is critical