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OSG Screw Thread Insert STI Tap: Spiral Fute, 1/4"-28 UNF, H3 / 2B-3B - Spiral-Flute STI Taps for Aluminum
OSGSpiral-Flute STI Taps for Aluminum

OSG Screw Thread Insert STI Tap: Spiral Fute, 1/4"-28 UNF, H3 / 2B-3B

SKU 3G-OTH-262357

Brand
OSG
Item
Screw Thread Insert STI Tap: Spiral Fute, 1/4"-28 UNF, H3 / 2B-3B
Category
Spiral-Flute STI Taps for Aluminum
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Technical Specifications

OSG
Manufacturer Part Number
1303900700
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OSG Products
3G Electric (S) Pte. Ltd. — Singapore

Frequently Asked Questions

What is an OSG spiral-flute STI tap used for?

An OSG spiral-flute STI tap is used to cut internal threads in aluminum for screw thread inserts. It is designed for high-speed tapping in through-hole applications, efficiently evacuating chips upward to prevent clogging and thread damage.

What are the specifications of the OSG 1303900700 STI tap?

The OSG 1303900700 is a spiral-flute STI tap with thread size 1/4"-28 UNF, H3 / 2B-3B tolerance, and 2 flutes. It is designed for aluminum and produces threads that accept screw thread inserts. The manufacturer part number is 1303900700.

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 this OSG 1303900700 tap.

How to select the correct STI tap for aluminum?

Select an STI tap with the correct thread size and pitch for your insert, such as 1/4"-28 UNF. For aluminum, choose a spiral-flute design with H3 tolerance for precise thread fit. OSG taps are a reliable choice for consistent performance in aluminum tapping.

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 spiral-flute sti taps for aluminum. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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