OSG Straight Flute Tap: 1 1/4"-7 UNC, H4 / 2B-3B, 4 Flute, Bottoming Chamfer (MPN 1137701)
SKU 3G-OTH-221600
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Frequently Asked Questions
What is the OSG Straight Flute Tap 1137701 used for?
The OSG Straight Flute Tap 1137701 is a general purpose hand tap designed for cutting internal threads in through or blind holes. It is commonly used in metalworking, automotive, and general manufacturing applications where precise UNC threads are required.
What are the specifications of the OSG Straight Flute Tap 1137701?
The OSG Straight Flute Tap 1137701 has a thread size of 1 1/4"-7 UNC, with a H4 tolerance for 2B-3B class fit. It features 4 flutes and a bottoming chamfer, making it suitable for threading close to the bottom of blind holes. The manufacturer part number is 1137701.
Where to buy the OSG Straight Flute Tap 1137701 worldwide?
You can source the OSG Straight Flute Tap 1137701 through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations, ensuring you receive the correct OSG tap for your threading needs.
How to select the correct OSG Straight Flute Tap for UNC threads?
To select the correct OSG Straight Flute Tap, match the thread size and pitch (e.g., 1 1/4"-7 UNC) to your application. For blind holes, choose a bottoming chamfer tap like the 1137701. Ensure the tap tolerance (H4) aligns with the required class of fit (2B-3B) for your workpiece material.
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3G Electric supplies OSG general purpose hand taps. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.















