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OSG Spiral Point Tap: 1/2"-13 UNC, H3 / 2B-3B, 3 Flute, Plug Chamfer - General Purpose Spiral-Point Taps
OSGGeneral Purpose Spiral-Point Taps

OSG Spiral Point Tap: 1/2"-13 UNC, H3 / 2B-3B, 3 Flute, Plug Chamfer

The OSG Spiral Point Tap (1/2"-13 UNC) is a general-purpose spiral-point tap with a plug chamfer, black oxide high-speed steel construction, and three flutes. It is specified as H3 / 2B-3B (MPN 1232401), designed for…

SKU 3G-OTH-215137

Brand
OSG
Item
Spiral Point Tap: 1/2"-13 UNC, H3 / 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
1232401
Type
H3 / 2B-3B, Plug Chamfer, Black Oxide High Speed Steel
Flute
3

Technical Documents

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

Product Description

The OSG Spiral Point Tap (1/2"-13 UNC) is a general-purpose spiral-point tap with a plug chamfer, black oxide high-speed steel construction, and three flutes. It is specified as H3 / 2B-3B (MPN 1232401), designed for through-hole threading in a range of materials.

Frequently Asked Questions

What is an OSG spiral point tap used for?

An OSG spiral point tap is designed for through-hole threading in production environments. Its spiral-point geometry pushes chips forward, preventing chip congestion and enabling faster, cleaner threading in materials like steel and aluminum. This 1/2"-13 UNC tap is ideal for general-purpose machining across automotive, aerospace, and industrial manufacturing.

What are the specifications of the OSG 1232401 tap?

The OSG 1232401 is a 1/2"-13 UNC spiral point tap with 3 flutes, a plug chamfer, and black oxide high-speed steel construction. It has an H3 / 2B-3B tolerance class, ensuring precise thread fit for both 2B and 3B classes. This tap is suitable for through-hole threading in ferrous and non-ferrous materials.

Where to buy OSG taps in worldwide?

3G Electric supplies OSG taps worldwide, including the 1232401 spiral point tap. As a global industrial sourcing partner, we handle full logistics, customs clearance, and delivery to your facility. Contact us for a quote on this or any OSG threading tool — we provide genuine OSG products with reliable lead times.

How to select the correct OSG tap for a job?

Select an OSG tap based on thread size (e.g., 1/2"-13 UNC), hole type (through vs. blind), material, and tolerance class. For through-holes, a spiral point tap like this 1232401 pushes chips forward. Match the H3 / 2B-3B class to your required thread fit. 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: 1/2"-20 UNF, H3 / 2B-3B, 3 Flute, Plug Chamfer, Black Oxide High Speed Steel (MPN 1232601)
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OSG Spiral Point Tap: 1/2"-20 UNF, H3 / 2B-3B, 3 Flute, Plug Chamfer, Black Oxide High Speed Steel (MPN 1232601)
OSG Spiral Point Tap: 1/2"-13 UNC, H3 / 2B-3B, 3 Flute, Plug Chamfer, High Speed Steel (MPN 1232400)
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OSG Spiral Point Tap: 1/2"-13 UNC, H3 / 2B-3B, 3 Flute, Plug Chamfer, High Speed Steel (MPN 1232400)
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OSG Spiral Point Tap: 3/4"-10 UNC, H3 / 2B-3B, 3 Flute, Plug Chamfer, Black Oxide High Speed Steel (MPN 1233601)
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OSG Spiral Point Tap: 5/8"-18 UNF, H3 / 2B-3B, 3 Flute, Plug Chamfer, Black Oxide High Speed Steel (MPN 1233401)
OSG Spiral Point Tap: 7/16"-20 UNF, H3 / 2B-3B, 3 Flute, Plug Chamfer, Black Oxide High Speed Steel (MPN 1232201)
OSG
OSG Spiral Point Tap: 7/16"-20 UNF, H3 / 2B-3B, 3 Flute, Plug Chamfer, Black Oxide High Speed Steel (MPN 1232201)
OSG Spiral Point Tap: 3/8"-24 UNF, H3 / 2B-3B, 3 Flute, Plug Chamfer, Black Oxide High Speed Steel (MPN 1231801)
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OSG Spiral Point Tap: 3/8"-24 UNF, H3 / 2B-3B, 3 Flute, Plug Chamfer, Black Oxide High Speed Steel (MPN 1231801)

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