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OSG 12500600 Spiral-Point STI Tap - Spiral-Point STI Taps
OSGSpiral-Point STI Taps

OSG 12500600 Spiral-Point STI Tap

The OSG Screw Thread Insert STI Tap is a spiral-point tap for 1/2"-13 UNC threads, featuring an H4 / 2B-3B tolerance with a plug chamfer and 3 flutes (MPN 12500600). 3G Electric interprets this demand and sources the…

SKU 3G-OTH-286983

Brand
OSG
Item
12500600 Spiral-Point STI Tap
Part Number
12500600
Category
Spiral-Point STI Taps
Available to Order
Also known as:12500600OSG
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Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Payment
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Technical Specifications

OSG
Manufacturer Part Number
12500600
Type
H4 / 2B-3B, Plug Chamfer
Flute
3
UNC
1/2"-13

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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 1/2"-13 UNC threads, featuring an H4 / 2B-3B tolerance with a plug chamfer and 3 flutes (MPN 12500600). 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 the OSG Screw Thread Insert STI Tap used for?

The OSG Screw Thread Insert STI Tap is used to cut internal threads in metal or plastic for installing screw thread inserts (STI). It is commonly applied in aerospace, automotive, and industrial maintenance where stripped threads must be repaired or reinforced with a helical insert.

What are the specifications of the OSG 12500600 STI Tap?

The OSG 12500600 is a spiral-point STI tap with a 1/2"-13 UNC thread, H4 / 2B-3B tolerance, 3 flutes, and a plug chamfer. It is designed for through-hole threading and produces a 2B or 3B class fit. The spiral-point geometry pushes chips forward for efficient cutting.

Where to buy OSG STI Taps worldwide?

OSG STI Taps are available to order through 3G Electric, a global industrial equipment distributor. We source and deliver this OSG tap worldwide, handling full logistics, customs clearance, and delivery to your facility. Contact 3G Electric for availability and lead time.

How to select the correct OSG STI Tap size?

To select the correct OSG STI Tap, match the tap thread size and pitch to the insert you plan to install. For example, the 12500600 is for 1/2"-13 UNC inserts. Verify the tap tolerance (H4 / 2B-3B) matches your required thread class. Always use a compatible tap drill for the STI size.

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-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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This spiral-point STI tap is designed for cutting internal threads in through holes prior to installing helical coil thread inserts. It features a 1"-8 UNC thread, H6 tolerance, plug chamfer, 4 flutes, and is made from high-speed steel. Typical applications include thread repair and reinforcement in metal components
OSG
This spiral-point STI tap is designed for cutting internal threads in through holes prior to installing helical coil thread inserts. It features a 1"-8 UNC thread, H6 tolerance, plug chamfer, 4 flutes, and is made from high-speed steel. Typical applications include thread repair and reinforcement in metal components

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