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OSG Spiral Flute Tap: 7/16"-20 UNF, H7 / 2B-3B, 3 Flute - General Purpose Spiral-Flute Taps
OSGGeneral Purpose Spiral-Flute Taps

OSG Spiral Flute Tap: 7/16"-20 UNF, H7 / 2B-3B, 3 Flute

The OSG Spiral Flute Tap (7/16"-20 UNF, MPN 2949000) is a general-purpose spiral-flute tap with a modified bottoming chamfer. It features 3 flutes and is rated H7 / 2B-3B for thread tolerance.

SKU 3G-OTH-230413

Brand
OSG
Item
Spiral Flute Tap: 7/16"-20 UNF, H7 / 2B-3B, 3 Flute
Category
General Purpose Spiral-Flute Taps
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Technical Specifications

OSG
Manufacturer Part Number
2949000
Type
H7 / 2B-3B, Modified Bottoming Chamfer
Flute
3
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OSG Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The OSG Spiral Flute Tap (7/16"-20 UNF, MPN 2949000) is a general-purpose spiral-flute tap with a modified bottoming chamfer. It features 3 flutes and is rated H7 / 2B-3B for thread tolerance.

Frequently Asked Questions

What is the OSG spiral flute tap 2949000 used for?

The OSG spiral flute tap 2949000 is designed for threading blind holes in materials like steel and aluminum. Its spiral flute design lifts chips upward, preventing clogging, making it ideal for automotive, aerospace, and general manufacturing applications requiring UNF threads.

What are the specifications of the OSG tap 2949000?

This OSG tap has a 7/16"-20 UNF thread size, H7 / 2B-3B tolerance, 3 flutes, and a modified bottoming chamfer. The spiral flute geometry is optimized for chip evacuation in blind-hole threading. The manufacturer part number is 2949000.

Where to buy OSG spiral flute tap 2949000 worldwide?

You can source the OSG spiral flute tap 2949000 through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide locations, ensuring you receive the correct threading tool for your operations.

How to select the correct OSG tap for UNF threads?

Select an OSG tap by matching the thread size (e.g., 7/16"-20 UNF) and tolerance class (H7 for 2B-3B fit). For blind holes, choose a spiral flute tap with a modified bottoming chamfer to thread close to the hole bottom. Verify material compatibility with OSG's coating options.

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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