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OSG Spiral Flute Tap: 7/16"-14 UNC, H11 / 2B, 3 Flute - Oversized Spiral-Flute Taps
OSGOversized Spiral-Flute Taps

OSG Spiral Flute Tap: 7/16"-14 UNC, H11 / 2B, 3 Flute

The OSG 7/16"-14 UNC Spiral Flute Tap (MPN 2943301) is an oversized spiral-flute tap with a modified bottoming chamfer, designed for H11 / 2B thread class. It features 3 flutes for efficient chip evacuation in…

SKU 3G-OTH-211293

Brand
OSG
Item
Spiral Flute Tap: 7/16"-14 UNC, H11 / 2B, 3 Flute
Category
Oversized Spiral-Flute Taps
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Technical Specifications

OSG
Manufacturer Part Number
2943301
Type
H11 / 2B, Modified Bottoming Chamfer
Flute
3
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OSG Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The OSG 7/16"-14 UNC Spiral Flute Tap (MPN 2943301) is an oversized spiral-flute tap with a modified bottoming chamfer, designed for H11 / 2B thread class. It features 3 flutes for efficient chip evacuation in through-hole and blind-hole threading applications.

Frequently Asked Questions

What is the OSG spiral flute tap 2943301 used for?

The OSG spiral flute tap 2943301 is used for threading blind holes in ferrous and non-ferrous materials. Its spiral flute design evacuates chips upward, preventing clogging in deep or blind-hole applications. The modified bottoming chamfer allows threading close to the bottom of the hole. It is commonly used in automotive, aerospace, and general manufacturing.

What are the specifications of the OSG spiral flute tap 2943301?

The OSG spiral flute tap 2943301 has a thread size of 7/16"-14 UNC, with an H11 / 2B tolerance class. It features 3 flutes and a modified bottoming chamfer. The tap is designed for oversized threading applications. The manufacturer part number is 2943301. It is suitable for use with ferrous and non-ferrous materials.

Where to buy the OSG spiral flute tap 2943301 worldwide?

You can source the OSG spiral flute tap 2943301 worldwide through 3G Electric. As a global industrial equipment distributor, 3G Electric handles full logistics, customs clearance, and delivery to your location. Contact 3G Electric for availability and lead time. We supply genuine OSG taps to customers in manufacturing, automotive, and aerospace industries.

How to select the correct OSG spiral flute tap for blind holes?

To select the correct OSG spiral flute tap for blind holes, match the thread size and pitch to your application, such as 7/16"-14 UNC. Choose a spiral flute design for chip evacuation upward. A modified bottoming chamfer allows threading close to the hole bottom. Ensure the tap tolerance class (e.g., H11 / 2B) matches the required thread fit. Consult OSG technical data for material-specific 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 oversized 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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