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OSG 1"-8 UNC Spiral-Point STI Tap - Spiral-Point STI Taps
OSGSpiral-Point STI Taps

OSG 1"-8 UNC Spiral-Point STI Tap

The OSG Screw Thread Insert STI Tap is a spiral-point tap for 1"-8 UNC threads, featuring an H6 tolerance, plug chamfer, 4 flutes, and high-speed steel construction (MPN 12502600). 3G Electric interprets this demand…

SKU 3G-OTH-286984

Brand
OSG
Item
1"-8 UNC Spiral-Point STI Tap
Part Number
12502600
Category
Spiral-Point STI Taps
Available to Order
Also known as:12502600OSG
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Worldwide DHL shipping from Singapore; 7–14 business days door-to-door for most destinations.
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Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.

Technical Specifications

OSG
Manufacturer Part Number
12502600
Type
H6, Plug Chamfer, High Speed Steel
Flute
4
UNC
1"-8

Technical Documents

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

Product Description

The OSG Screw Thread Insert STI Tap is a spiral-point tap for 1"-8 UNC threads, featuring an H6 tolerance, plug chamfer, 4 flutes, and high-speed steel construction (MPN 12502600). 3G Electric interprets this demand and sources the genuine OSG tool, backed by specialist expertise across 14 industrial departments — including cutting tools — to ensure you get the right solution.

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 workpiece before installing a helical coil thread insert. It is commonly applied in aerospace, automotive, and industrial maintenance to repair or reinforce stripped threads in metal components.

What are the specifications of the OSG STI Tap 12502600?

The OSG STI Tap 12502600 is a spiral-point tap with a 1"-8 UNC thread, H6 tolerance, 4 flutes, and a plug chamfer. It is made of high-speed steel and is designed for through-hole threading to accommodate screw thread inserts.

Where to buy OSG STI Tap 12502600 worldwide?

3G Electric supplies and delivers the OSG STI Tap 12502600 worldwide. As a global industrial solutions provider, we handle full logistics and customs clearance to ensure your order arrives at your facility, regardless of location.

How to select the correct STI tap for a thread insert?

To select the correct STI tap, match the tap's thread size and pitch to the insert's specifications. For a 1"-8 UNC insert, use an OSG STI tap with the same designation. Ensure the tap's tolerance (e.g., H6) aligns with the insert's class of fit for proper thread engagement.

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 spiral-point 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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