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OSG 3/4"-16 UNF General Purpose Spiral-Flute Tap - General Purpose Spiral-Flute Taps
OSGGeneral Purpose Spiral-Flute Taps

OSG 3/4"-16 UNF General Purpose Spiral-Flute Tap

The OSG Spiral Flute Tap (3/4"-16 UNF, MPN 2943801) is a general-purpose spiral-flute tap with an H5 / 2B-3B tolerance and a modified bottoming chamfer. It features 4 flutes for efficient chip evacuation in…

SKU 3G-OTH-231027

Brand
OSG
Item
3/4"-16 UNF General Purpose Spiral-Flute Tap
Category
General Purpose Spiral-Flute Taps
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Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Delivery
Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
Ships to
Singapore

Technical Specifications

OSG
Manufacturer Part Number
2943801
Type
H5 / 2B-3B, Modified Bottoming Chamfer
Flute
4

Technical Documents

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OSG Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The OSG Spiral Flute Tap (3/4"-16 UNF, MPN 2943801) is a general-purpose spiral-flute tap with an H5 / 2B-3B tolerance and a modified bottoming chamfer. It features 4 flutes for efficient chip evacuation in through-hole and blind-hole threading applications.

Frequently Asked Questions

What is the OSG spiral flute tap 2943801 used for?

The OSG spiral flute tap 2943801 is designed for threading blind holes in materials such as steel and stainless steel. Its spiral flute design evacuates chips upward, preventing clogging and ensuring clean threads. It is commonly used in automotive, aerospace, and general manufacturing applications.

What are the specifications of the OSG spiral flute tap 2943801?

The OSG spiral flute tap 2943801 has a thread size of 3/4"-16 UNF, with an H5 tolerance class for 2B-3B fit. It features 4 flutes and a modified bottoming chamfer. The manufacturer part number is 2943801, and it is designed for general-purpose threading in blind holes.

Where to buy the OSG spiral flute tap 2943801 worldwide?

You can source the OSG spiral flute tap 2943801 through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations. Contact us for availability and lead time; we provide reliable sourcing for this and other OSG taps.

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 (e.g., 3/4"-16 UNF) and tolerance class (e.g., H5) to your application. Ensure the tap has a modified bottoming chamfer for threading close to the hole bottom. OSG taps are designed for efficient chip evacuation in blind-hole threading.

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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Compatible alternatives & equivalents

Cross-referenced by specification & description
OSG Spiral Flute Tap: 3/4"-10 UNC, H5 / 2B-3B, 4 Flute, Modified Bottoming Chamfer (MPN 2943601)
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OSG Spiral Flute Tap: 3/4"-10 UNC, H5 / 2B-3B, 4 Flute, Modified Bottoming Chamfer (MPN 2943601)
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OSG Spiral Flute Tap: 3/4"-10 UNC, H5 / 2B-3B, 4 Flute, Modified Bottoming Chamfer (MPN 2943600)
OSG Spiral Flute Tap: 5/8"-11 UNC, H5 / 2B-3B, 4 Flute, Modified Bottoming Chamfer (MPN 2943201)
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OSG Spiral Flute Tap: 5/8"-11 UNC, H5 / 2B-3B, 4 Flute, Modified Bottoming Chamfer (MPN 2943201)
OSG Spiral Flute Tap: 3/8"-16 UNC, H5 / 2B-3B, 3 Flute, Modified Bottoming Chamfer (MPN 2941601)
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OSG Spiral Flute Tap: 3/8"-16 UNC, H5 / 2B-3B, 3 Flute, Modified Bottoming Chamfer (MPN 2941601)
OSG Spiral Flute Tap: 7/8"-9 UNC, H5 / 2B-3B, 4 Flute, Modified Bottoming Chamfer (MPN 2944000)
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OSG Spiral Flute Tap: 7/8"-9 UNC, H5 / 2B-3B, 4 Flute, Modified Bottoming Chamfer (MPN 2944000)
OSG Spiral Flute Tap: 5/16"-24 UNF, H5 / 2B-3B, 3 Flute, Modified Bottoming Chamfer (MPN 2941201)
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OSG Spiral Flute Tap: 5/16"-24 UNF, H5 / 2B-3B, 3 Flute, Modified Bottoming Chamfer (MPN 2941201)

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