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OSG Screw Thread Insert STI Tap: Straight Fute, 1"-12 UNF, H4 / 2B, 4 Flute - General Purpose STI Taps
OSGGeneral Purpose STI Taps

OSG Screw Thread Insert STI Tap: Straight Fute, 1"-12 UNF, H4 / 2B, 4 Flute

The OSG Screw Thread Insert STI Tap (SKU 33ZK70, MPN 12605100) is a general-purpose STI tap with a straight flute design, specified as 1"-12 UNF, H4 / 2B tolerance, 4 flutes, and a plug chamfer. 3G Electric…

SKU 3G-OTH-262078

Brand
OSG
Item
Screw Thread Insert STI Tap: Straight Fute, 1"-12 UNF, H4 / 2B, 4 Flute
Category
General Purpose STI Taps
Available to Order
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Technical Specifications

OSG
Manufacturer Part Number
12605100
Type
H4 / 2B, Plug Chamfer
Flute
4
UNF
1"-12
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OSG Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The OSG Screw Thread Insert STI Tap (SKU 33ZK70, MPN 12605100) is a general-purpose STI tap with a straight flute design, specified as 1"-12 UNF, H4 / 2B tolerance, 4 flutes, and a plug chamfer. 3G Electric interprets this demand and sources the exact OEM-specified tool, supporting your threading operations across 14 industrial departments with specialist depth in cutting tools and controls.

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. It is ideal for repair and production applications in automotive, aerospace, and general manufacturing where thread reinforcement is needed.

What are the specifications of the OSG STI Tap 12605100?

The OSG STI Tap 12605100 is a straight flute, general purpose tap with a 1"-12 UNF thread, H4/2B tolerance, 4 flutes, and a plug chamfer. It is designed for cutting threads to accept screw thread inserts in materials up to 850 °C.

Where to buy the OSG STI Tap 12605100 worldwide?

You can source the OSG STI Tap 12605100 worldwide through 3G Electric. We handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time; we supply genuine OSG tooling globally.

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

Select an OSG STI tap that matches the thread size and pitch of the insert, such as 1"-12 UNF. Use a plug chamfer for through holes and a bottoming chamfer for blind holes. Ensure the tap tolerance (e.g., H4) aligns with the required class of fit (e.g., 2B).

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 general purpose 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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