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OSG 31521008 Spiral-Flute STI Tap, 1/2"-20 UNF, H4 / 2B-3B, 3 Flute - Spiral-Flute STI Taps for Nickel & Titanium
OSGSpiral-Flute STI Taps for Nickel & Titanium

OSG 31521008 Spiral-Flute STI Tap, 1/2"-20 UNF, H4 / 2B-3B, 3 Flute

OSG Spiral-Flute STI Taps for Nickel & Titanium.

SKU 3G-OTH-276708

Brand
OSG
Item
31521008 Spiral-Flute STI Tap, 1/2"-20 UNF, H4 / 2B-3B, 3 Flute
Part Number
31521008
Category
Spiral-Flute STI Taps for Nickel & Titanium
Available to Order
Also known as:31521008OSG
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Technical Specifications

OSG
Manufacturer Part Number
31521008

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

Product Description

OSG Spiral-Flute STI Taps for Nickel & Titanium.

Frequently Asked Questions

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

This OSG spiral-flute STI tap is designed for threading holes in nickel and titanium alloys before installing screw thread inserts. It is commonly used in aerospace, automotive, and industrial applications requiring strong, wear-resistant threads in hard materials.

What are the specifications of the OSG 31521008 STI Tap?

The OSG 31521008 is a spiral-flute STI tap with a 1/2"-20 UNF thread size, H4 / 2B-3B tolerance, and 3 flutes. It is engineered for threading in nickel and titanium alloys, ensuring precise fit for screw thread inserts.

Where to buy OSG STI Taps worldwide?

3G Electric supplies OSG STI taps worldwide. As a global industrial distributor, we handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time on the OSG 31521008.

How to select the correct OSG STI Tap for nickel alloys?

Select an OSG STI tap with spiral-flute geometry for nickel and titanium alloys, as it improves chip evacuation. Match the thread size (e.g., 1/2"-20 UNF) and tolerance (H4 / 2B-3B) to your insert requirements. Consult OSG's technical data for material-specific speeds and feeds.

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 for nickel & titanium. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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