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OSG Spiral Flute Tap: 1/4"-20 UNC, H3 / 2B-3B, 3 Flute, Plug Chamfer - General Purpose Spiral-Flute Taps
OSGGeneral Purpose Spiral-Flute Taps

OSG Spiral Flute Tap: 1/4"-20 UNC, H3 / 2B-3B, 3 Flute, Plug Chamfer

The OSG Spiral Flute Tap (1/4"-20 UNC, MPN 1430005) is a general-purpose tap with a TiN-coated high-speed steel construction, featuring a plug chamfer and 3 flutes. It is specified as H3 / 2B-3B, designed for…

SKU 3G-OTH-230444

Brand
OSG
Item
Spiral Flute Tap: 1/4"-20 UNC, H3 / 2B-3B, 3 Flute, Plug Chamfer
Category
General Purpose Spiral-Flute Taps
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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
1430005
Type
H3 / 2B-3B, Plug Chamfer, TiN Coated 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 (1/4"-20 UNC, MPN 1430005) is a general-purpose tap with a TiN-coated high-speed steel construction, featuring a plug chamfer and 3 flutes. It is specified as H3 / 2B-3B, designed for threading applications requiring these tolerance classes.

Frequently Asked Questions

What is the OSG spiral flute tap 1/4-20 UNC used for?

The OSG spiral flute tap is designed for threading blind holes in materials such as steel and stainless steel. Its spiral flute design lifts chips upward, preventing clogging. The TiN coating reduces friction and extends tool life. It is commonly used in automotive, aerospace, and general manufacturing applications.

What are the specifications of the OSG spiral flute tap 1/4-20 UNC?

This OSG tap has a 1/4-20 UNC thread size, H3 / 2B-3B tolerance, 3 flutes, and a plug chamfer. It is made of high-speed steel with a TiN coating. The manufacturer part number is 1430005. It is suitable for threading blind holes in ferrous and non-ferrous materials.

Where to buy OSG spiral flute taps worldwide?

You can source OSG spiral flute 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. We supply genuine OSG tooling for manufacturing operations.

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

For blind holes, choose a spiral flute tap with a plug chamfer, like this OSG model. The spiral flutes evacuate chips upward, preventing packing at the hole bottom. Ensure the tap tolerance (H3 / 2B-3B) matches your thread class. Use appropriate cutting fluid for the workpiece material to maximize tool life.

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: 5/16"-18 UNC, H3 / 2B-3B, 3 Flute, Plug Chamfer, TiN Coated High Speed Steel (MPN 1430405)
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OSG Spiral Flute Tap: 5/16"-18 UNC, H3 / 2B-3B, 3 Flute, Plug Chamfer, TiN Coated High Speed Steel (MPN 1430405)
OSG Spiral Flute Tap: 3/8"-16 UNC, H3 / 2B-3B, 3 Flute, Plug Chamfer, TiN Coated High Speed Steel (MPN 1430805)
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OSG Spiral Flute Tap: 3/8"-16 UNC, H3 / 2B-3B, 3 Flute, Plug Chamfer, TiN Coated High Speed Steel (MPN 1430805)
OSG Spiral Flute Tap: 1/2"-13 UNC, H3 / 2B-3B, 3 Flute, Plug Chamfer, TiN Coated High Speed Steel (MPN 1432005)
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OSG Spiral Flute Tap: 1/2"-13 UNC, H3 / 2B-3B, 3 Flute, Plug Chamfer, TiN Coated High Speed Steel (MPN 1432005)
OSG Spiral Flute Tap: #4-40 UNC, H2 / 2B-3B, 2 Flute, Plug Chamfer, TiN Coated High Speed Steel (MPN 1406405)
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OSG Spiral Flute Tap: #4-40 UNC, H2 / 2B-3B, 2 Flute, Plug Chamfer, TiN Coated High Speed Steel (MPN 1406405)
OSG Spiral Flute Tap: #6-32 UNC, H3 / 2B-3B, 2 Flute, Plug Chamfer, TiN Coated High Speed Steel (MPN 1412405)
OSG
OSG Spiral Flute Tap: #6-32 UNC, H3 / 2B-3B, 2 Flute, Plug Chamfer, TiN Coated High Speed Steel (MPN 1412405)
OSG Spiral Flute Tap: 1/4"-20 UNC, H3 / 2B-3B, 3 Flute, Plug Chamfer, TiCN Coated High Speed Steel (MPN 1430008)
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OSG Spiral Flute Tap: 1/4"-20 UNC, H3 / 2B-3B, 3 Flute, Plug Chamfer, TiCN Coated High Speed Steel (MPN 1430008)

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