OSG Spiral Flute Tap: M8x1.25 Metric, 6H, 3 Flute, Bottoming Chamfer
The OSG Spiral Flute Tap (M8x1.25 Metric, MPN 2988401) is a general-purpose spiral-flute tap with a 6H tolerance, bottoming chamfer, and black oxide high-speed steel construction. It features 3 flutes for efficient…
SKU 3G-OTH-230068
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Product Description
The OSG Spiral Flute Tap (M8x1.25 Metric, MPN 2988401) is a general-purpose spiral-flute tap with a 6H tolerance, bottoming chamfer, and black oxide high-speed steel construction. 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 used for?
The OSG spiral flute tap is used for threading blind holes in metal, where chips must be evacuated upward. It is ideal for general-purpose tapping in steel, stainless steel, and aluminum, commonly used in automotive, aerospace, and general manufacturing applications.
What are the specifications of the OSG spiral flute tap?
This OSG tap has a metric M8x1.25 thread, 6H tolerance, 3 flutes, a bottoming chamfer, and is made from black oxide high-speed steel. The manufacturer part number is 2988401. It is designed for threading blind holes to the bottom.
Where to buy the OSG spiral flute tap worldwide?
You can source the OSG spiral flute tap worldwide through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time.
How to select the correct OSG spiral flute tap?
Select the OSG spiral flute tap based on thread size (M8x1.25), hole type (blind), material (steel or aluminum), and chamfer type (bottoming for full threads to the hole bottom). Ensure the tap matches the required tolerance class, such as 6H for metric threads.
Used in
Common applications for OSGOSG 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.














