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OSG #3-48 UNC Spiral-Flute STI Tap, H2 / 2B-3B, Bottoming Chamfer, 2 Flute - Spiral-Flute STI Taps
OSGSpiral-Flute STI Taps

OSG #3-48 UNC Spiral-Flute STI Tap, H2 / 2B-3B, Bottoming Chamfer, 2 Flute

The OSG Screw Thread Insert STI Tap is a spiral-flute tap designed for #3-48 UNC threads with a bottoming chamfer. It features 2 flutes and is rated H2 / 2B-3B (MPN 10800100).

SKU 3G-OTH-273400

Brand
OSG
Item
#3-48 UNC Spiral-Flute STI Tap, H2 / 2B-3B, Bottoming Chamfer, 2 Flute
Part Number
10800100
Category
Spiral-Flute STI Taps
Available to Order
Also known as:10800100OSG
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Technical Specifications

OSG
Manufacturer Part Number
10800100
Type
#3-48 UNC, H2 / 2B-3B, Bottoming Chamfer
Flute
2

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

Product Description

The OSG Screw Thread Insert STI Tap is a spiral-flute tap designed for #3-48 UNC threads with a bottoming chamfer. It features 2 flutes and is rated H2 / 2B-3B (MPN 10800100).

Frequently Asked Questions

What is an OSG Screw Thread Insert STI Tap used for?

An OSG Screw Thread Insert STI Tap is used to cut internal threads in a pre-drilled hole before installing a helical wire thread insert. It is commonly applied in aerospace, automotive, and general manufacturing to repair or reinforce threads in softer materials like aluminum or cast iron.

What are the specifications of the OSG STI Tap #3-48 UNC?

This OSG STI Tap has a #3-48 UNC thread size, H2 / 2B-3B tolerance, 2 flutes, and a bottoming chamfer design. The spiral flute geometry helps evacuate chips upward during tapping. The manufacturer part number is 10800100. It is designed for use with screw thread inserts.

Where to buy OSG STI Taps worldwide?

You can source OSG STI 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 on the OSG Screw Thread Insert STI Tap model 10800100.

How to select the correct OSG STI Tap for a thread repair?

To select the correct OSG STI Tap, match the tap thread size and pitch to the thread insert you plan to install. For a #3-48 UNC insert, use this STI tap with H2 / 2B-3B tolerance and bottoming chamfer for blind holes. Always verify the tap's flute count and coating suit the workpiece material.

Used in

Common applications for OSG
Aerospace — OSG STI taps for installing helical wire thread inserts in aluminum components
Automotive — OSG spiral-point taps for through-hole threading in engine blocks and transmission cases
General machining — OSG spiral-flute taps for blind-hole threading in steel and stainless steel parts
Heavy equipment repair — OSG thread-forming taps for creating threads in ductile iron and steel castings
Precision manufacturing — OSG solid carbide chucking reamers for finishing holes in hydraulic manifolds
Die and mold — OSG coolant-through solid carbide drills for deep-hole drilling in tool steels
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OSG Products

3G Electric supplies OSG spiral-flute sti taps. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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