OSG Straight Flute Tap: M20x1.5 Metric, D6 / 4H-6H, 4 Flute, Bottoming Chamfer (MPN 1976801)

An OSG straight flute tap is used for cutting internal threads in through or blind holes. This M20x1.5 metric tap with a bottoming chamfer is ideal for general-purpose hand threading in steel, aluminum, and cast iron across machining and maintenance applications.

This OSG tap has a metric thread size of M20x1.5, a 4-flute design, and a bottoming chamfer for threading to the bottom of blind holes. It is ground to a D6 / 4H-6H tolerance class for precise fit. The manufacturer part number is 1976801.

3G Electric supplies OSG taps worldwide, handling full logistics and customs clearance for global delivery. As a sourcing specialist across 14 industrial departments, we provide genuine OSG cutting tools like the M20x1.5 straight flute tap to customers in any country.

Select an OSG tap based on thread size, pitch, chamfer type, and material. For blind holes, use a bottoming chamfer tap like this M20x1.5 model. Match the tap tolerance (e.g., 4H-6H) to the required thread class. Always use proper cutting fluid for the workpiece material.