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OSG Screw Thread Insert STI Tap: Straight Fute, #10-32 UNF, H2 / 2B-3B, 3 Flute - General Purpose STI Taps
OSGGeneral Purpose STI Taps

OSG Screw Thread Insert STI Tap: Straight Fute, #10-32 UNF, H2 / 2B-3B, 3 Flute

The OSG Screw Thread Insert STI Tap (SKU 33ZK79, MPN 1805900) is a general-purpose STI tap with a straight flute design, sized #10-32 UNF. It features a bottoming chamfer, 3 flutes, and an H2 / 2B-3B tolerance class…

SKU 3G-OTH-262062

Brand
OSG
Item
Screw Thread Insert STI Tap: Straight Fute, #10-32 UNF, H2 / 2B-3B, 3 Flute
Category
General Purpose STI Taps
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Technical Specifications

OSG
Manufacturer Part Number
1805900
Type
#10-32 UNF, H2 / 2B-3B, Bottoming Chamfer
Flute
3
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OSG Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The OSG Screw Thread Insert STI Tap (SKU 33ZK79, MPN 1805900) is a general-purpose STI tap with a straight flute design, sized #10-32 UNF. It features a bottoming chamfer, 3 flutes, and an H2 / 2B-3B tolerance class, suitable for threading insert-ready holes.

Frequently Asked Questions

What is OSG Screw Thread Insert STI Tap used for?

This OSG STI tap cuts internal threads for helical coil inserts in metal parts. It is used in automotive, aerospace, and general manufacturing to restore or reinforce threads in aluminum, steel, and cast iron. The bottoming chamfer allows threading to the bottom of blind holes.

What are the specifications of the OSG STI Tap #10-32 UNF?

This OSG STI tap has a #10-32 UNF thread size, H2 / 2B-3B tolerance, 3 straight flutes, and a bottoming chamfer. It is designed for general purpose tapping of screw thread inserts. The manufacturer part number is 1805900.

Where to buy OSG STI Tap #10-32 UNF worldwide?

3G Electric supplies the OSG STI Tap #10-32 UNF 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 this OSG tap.

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

Select an STI tap that matches the thread size and pitch of the insert, such as #10-32 UNF. Use a bottoming chamfer for blind holes or a plug chamfer for through holes. The H2 tolerance suits 2B-3B class threads. Always refer to the insert manufacturer's recommendations.

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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