Widia Gtd VTSFT-TC5559 Spiral Flute Tap M10x1.50 Bottoming 2 Flutes Metric Fine

Widia Gtd Spiral Flute Tap M10x1.50

The Widia Gtd VTSFT-TC5559 is a spiral flute tap designed to cut M10x1.50 metric fine threads in a single pass. It suits machinists and maintenance technicians who need accurate internal threads in through holes or blind holes. The bottoming chamfer allows threading close to the bottom of a blind hole. High speed steel construction with black oxide finish provides wear resistance for general purpose threading applications.

Bottoming chamfer frees depth in blind holes

The bottoming style reduces the lead threads so the tap can cut nearer the base of a blind hole without bottoming out. Two flutes provide chip evacuation space while maintaining core strength for the M10x1.50 size. Overall length of 74.7 mm and thread length of 19.1 mm fit standard tap holders and tool posts. A 75 percent thread drill size of 8.50 mm prepares the hole for the D5 thread limit and 6H class of fit.

Upgrades from taper or plug taps for blind work

Switching from a taper or plug chamfer to this bottoming tap gains usable thread depth in blind holes where the hole depth is limited. The three flute design replaces two flute taps when better chip evacuation is needed in ductile materials. The jump is worth it when the application demands full thread depth to the bottom of a blind hole and standard tap holders accommodate the 74.7 mm overall length.