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OSG 1/4-20 UNC Spiral-Point Tap, H2 / 2B-3B, 3 Flute, Plug Chamfer - General Purpose Spiral-Point Taps
OSGGeneral Purpose Spiral-Point Taps

OSG 1/4-20 UNC Spiral-Point Tap, H2 / 2B-3B, 3 Flute, Plug Chamfer

OSG General Purpose Spiral-Point Taps.

SKU 3G-OTH-215352

Brand
OSG
Item
1/4-20 UNC Spiral-Point Tap, H2 / 2B-3B, 3 Flute, Plug Chamfer
Category
General Purpose Spiral-Point 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
2809408

Technical Documents

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

Product Description

OSG General Purpose Spiral-Point Taps.

Frequently Asked Questions

What is the OSG spiral point tap 2809408 used for?

The OSG spiral point tap 2809408 is used for threading through holes in ferrous and non-ferrous materials. Its spiral point design pushes chips ahead, making it ideal for high-speed production tapping in CNC and manual machines. Common applications include automotive, aerospace, and general manufacturing.

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

The OSG spiral point tap has a 1/4-20 UNC thread size, H2 / 2B-3B tolerance, 3 flutes, and a plug chamfer. The manufacturer part number is 2809408. It is designed for general purpose tapping in through holes, providing consistent thread quality in a range of materials.

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 facility. Contact us for availability and lead time on the OSG spiral point tap 2809408 and other cutting tools.

How to select the correct OSG tap for a threading application?

Select the OSG tap based on thread size, pitch, tolerance class, and material. For through holes, a spiral point tap like the 1/4-20 UNC with plug chamfer is recommended. Match the H limit (e.g., H2) to the required thread class (2B or 3B). Consult OSG's technical data for material-specific speeds and feeds.

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-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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Compatible alternatives & equivalents

Cross-referenced by specification & description
OSG Spiral Point Tap: 1/4"-20 UNC, H2 / 2B-3B, 3 Flute, Plug Chamfer (MPN 2809400)
OSG
OSG Spiral Point Tap: 1/4"-20 UNC, H2 / 2B-3B, 3 Flute, Plug Chamfer (MPN 2809400)
OSG Spiral Point Tap: 1/4"-20 UNC, H2 / 2B-3B, 3 Flute, Plug Chamfer (MPN 2809401)
OSG
OSG Spiral Point Tap: 1/4"-20 UNC, H2 / 2B-3B, 3 Flute, Plug Chamfer (MPN 2809401)
OSG Spiral Point Tap: 1/4"-20 UNC, H3 / 2B-3B, 3 Flute, Plug Chamfer (MPN 2830008)
OSG
OSG Spiral Point Tap: 1/4"-20 UNC, H3 / 2B-3B, 3 Flute, Plug Chamfer (MPN 2830008)
OSG Spiral Point Tap: 1/2"-20 UNF, H2 / 2B-3B, 3 Flute, Plug Chamfer (MPN 2827608)
OSG
OSG Spiral Point Tap: 1/2"-20 UNF, H2 / 2B-3B, 3 Flute, Plug Chamfer (MPN 2827608)
This spiral-point tap is designed for threading through-holes in metals. The spiral point pushes chips forward, preventing clogging. It is suitable for creating UNF threads in steel, aluminum, and alloys. Thread size: 1/2"-20 UNF, tolerance H2 / 2B-3B, 3 flutes, plug chamfer
OSG
This spiral-point tap is designed for threading through-holes in metals. The spiral point pushes chips forward, preventing clogging. It is suitable for creating UNF threads in steel, aluminum, and alloys. Thread size: 1/2"-20 UNF, tolerance H2 / 2B-3B, 3 flutes, plug chamfer
OSG Spiral Point Tap: 1/2"-20 UNF, H2 / 2B-3B, 3 Flute, Plug Chamfer (MPN 2827601)
OSG
OSG Spiral Point Tap: 1/2"-20 UNF, H2 / 2B-3B, 3 Flute, Plug Chamfer (MPN 2827601)

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