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OSG #12-28 UNF General Purpose Spiral-Point Tap - General Purpose Spiral-Point Taps
OSGGeneral Purpose Spiral-Point Taps

OSG #12-28 UNF General Purpose Spiral-Point Tap

The OSG Spiral Point Tap (#12-28 UNF, MPN 1214500) is a general purpose spiral-point tap with a bottoming chamfer, made from high-speed steel. It features 2 flutes and is ground to an H3 / 2B-3B tolerance class…

SKU 3G-OTH-214384

Brand
OSG
Item
#12-28 UNF General Purpose Spiral-Point Tap
Part Number
1214500
Category
General Purpose Spiral-Point Taps
Available to Order
Also known as:1214500OSG
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Worldwide DHL shipping from Singapore; 7–14 business days door-to-door for most destinations.
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Technical Specifications

OSG
Manufacturer Part Number
1214500
Type
H3 / 2B-3B, Bottoming Chamfer, High Speed Steel
Flute
2

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

Product Description

The OSG Spiral Point Tap (#12-28 UNF, MPN 1214500) is a general purpose spiral-point tap with a bottoming chamfer, made from high-speed steel. It features 2 flutes and is ground to an H3 / 2B-3B tolerance class, suitable for threading applications requiring precise fit.

Frequently Asked Questions

What is the OSG Spiral Point Tap #12-28 UNF used for?

The OSG Spiral Point Tap #12-28 UNF is used for threading blind or through holes in metal components. Its spiral-point design pushes chips forward, making it ideal for high-speed production tapping in automotive, aerospace, and general manufacturing applications.

What are the specifications of the OSG Spiral Point Tap #12-28 UNF?

This OSG tap has a #12-28 UNF thread size, H3 / 2B-3B tolerance, 2 flutes, and a bottoming chamfer. It is made from high-speed steel (HSS) and is designed for general-purpose tapping. The manufacturer part number is 1214500.

Where to buy the OSG Spiral Point Tap #12-28 UNF worldwide?

You can source the OSG Spiral Point Tap #12-28 UNF worldwide through 3G Electric. As a global industrial equipment distributor, 3G Electric handles full logistics, customs clearance, and delivery to your location, ensuring a smooth procurement process for this OSG tap.

How to select the correct OSG Spiral Point Tap for a job?

To select the correct OSG spiral point tap, match the thread size (e.g., #12-28 UNF), tolerance class (H3 / 2B-3B), and chamfer type (bottoming for blind holes) to your workpiece material and hole depth. For high-speed steel taps, ensure proper lubrication and cutting speed for optimal thread quality.

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
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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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