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OSG Spiral Point Tap: 1/4"-28 UNF, H3 / 2B-3B, 2 Flute, Plug Chamfer - General Purpose Spiral-Point Taps
OSGGeneral Purpose Spiral-Point Taps

OSG Spiral Point Tap: 1/4"-28 UNF, H3 / 2B-3B, 2 Flute, Plug Chamfer

The OSG Spiral Point Tap (1/4"-28 UNF) is a general-purpose spiral-point tap with a plug chamfer, made from black oxide high-speed steel. It features 2 flutes and is rated H3 / 2B-3B (MPN 1230401).

SKU 3G-OTH-215019

Brand
OSG
Item
Spiral Point Tap: 1/4"-28 UNF, H3 / 2B-3B, 2 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
1230401
Type
H3 / 2B-3B, Plug Chamfer, Black Oxide High Speed Steel
Flute
2

Technical Documents

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

Product Description

The OSG Spiral Point Tap (1/4"-28 UNF) is a general-purpose spiral-point tap with a plug chamfer, made from black oxide high-speed steel. It features 2 flutes and is rated H3 / 2B-3B (MPN 1230401).

Frequently Asked Questions

What is the OSG spiral point tap 1/4-28 UNF used for?

The OSG spiral point tap is designed for threading through holes in materials such as steel and stainless steel. Its spiral point design pushes chips forward, reducing chip clogging and enabling faster tapping. It is commonly used in automotive, aerospace, and general manufacturing applications.

What are the specifications of the OSG 1230401 tap?

The OSG 1230401 is a 1/4-28 UNF spiral point tap with a H3 / 2B-3B tolerance, 2 flutes, and a plug chamfer. It is made from black oxide high-speed steel. This tap is suitable for threading through holes and provides good wear resistance and chip evacuation.

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 times on the OSG 1230401 spiral point tap.

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

To select the correct OSG tap, match the thread size (e.g., 1/4-28 UNF), chamfer type (plug for through holes), and material (black oxide HSS for general steel). Ensure the tap tolerance (H3 / 2B-3B) aligns with your required thread class. For best results, use proper cutting fluid and tap at recommended speeds.

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"-28 UNF, H3 / 2B-3B, 2 Flute, Plug Chamfer, High Speed Steel (MPN 1230400)
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OSG Spiral Point Tap: 1/4"-28 UNF, H3 / 2B-3B, 2 Flute, Plug Chamfer, High Speed Steel (MPN 1230400)
OSG Spiral Point Tap: 1/4"-20 UNC, H3 / 2B-3B, 2 Flute, Plug Chamfer, Black Oxide High Speed Steel (MPN 1230001)
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OSG Spiral Point Tap: 1/4"-20 UNC, H3 / 2B-3B, 2 Flute, Plug Chamfer, Black Oxide High Speed Steel (MPN 1230001)
OSG Spiral Point Tap: 1/4"-20 UNC, H3 / 2B-3B, 3 Flute, Plug Chamfer, Black Oxide High Speed Steel (MPN 1230201)
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OSG Spiral Point Tap: 1/4"-20 UNC, H3 / 2B-3B, 3 Flute, Plug Chamfer, Black Oxide High Speed Steel (MPN 1230201)
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OSG Spiral Point Tap: 1/4"-20 UNC, H3 / 2B-3B, 2 Flute, Plug Chamfer, High Speed Steel (MPN 1230000)
OSG Spiral Point Tap: 1/4"-20 UNC, H3 / 2B-3B, 3 Flute, Plug Chamfer, High Speed Steel (MPN 1230200)
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OSG Spiral Point Tap: 1/4"-20 UNC, H3 / 2B-3B, 3 Flute, Plug Chamfer, High Speed Steel (MPN 1230200)
OSG Spiral Point Tap: 5/16"-18 UNC, H3 / 2B-3B, 2 Flute, Plug Chamfer, Black Oxide High Speed Steel (MPN 1230801)
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OSG Spiral Point Tap: 5/16"-18 UNC, H3 / 2B-3B, 2 Flute, Plug Chamfer, Black Oxide High Speed Steel (MPN 1230801)

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