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OSG Spiral Flute Tap: 3/8"-16 UNC, H7 / 2B-3B, 3 Flute - General Purpose Spiral-Flute Taps
OSGGeneral Purpose Spiral-Flute Taps

OSG Spiral Flute Tap: 3/8"-16 UNC, H7 / 2B-3B, 3 Flute

SKU 3G-OTH-230213

Brand
OSG
Item
Spiral Flute Tap: 3/8"-16 UNC, H7 / 2B-3B, 3 Flute
Category
General Purpose Spiral-Flute Taps
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Technical Specifications

OSG
Manufacturer Part Number
2942100
Type
H7 / 2B-3B, Modified Bottoming Chamfer
Flute
3
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OSG Products
3G Electric (S) Pte. Ltd. — Singapore

Frequently Asked Questions

What is an OSG spiral flute tap used for?

An OSG spiral flute tap is used for threading blind holes in materials such as steel, stainless steel, and aluminum. The spiral flute design pulls chips upward and out of the hole, preventing chip clogging and enabling cleaner threads in deep or blind-hole applications.

What are the specifications of the OSG 3/8-16 UNC spiral flute tap?

This OSG tap has a 3/8-16 UNC thread size, 3 flutes, and a modified bottoming chamfer. It is rated H7 / 2B-3B tolerance, meaning it produces threads within a precise fit range. The manufacturer part number is 2942100.

Where to buy OSG taps in worldwide?

3G Electric supplies OSG taps worldwide, handling full logistics and customs clearance for international orders. As a global industrial sourcing partner, we provide genuine OSG cutting tools and can deliver to your facility regardless of location.

How to select the right spiral flute tap for blind holes?

For blind holes, choose a spiral flute tap with a modified bottoming chamfer, like this OSG 3/8-16 UNC tap, to thread close to the hole bottom. Ensure the tap's flute count and helix angle match the material; 3 flutes work well for general-purpose threading in steel and aluminum.

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 spiral-flute taps. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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