BT30 Modular Tapping Kit including interchangeable tap holder collets.
This set contains GT12-style collets for ISO shank taps (most common).
It is a complete set and includes a BT30 Tension/Compression tap collet holder, six interchangeable collets, and adjustment wrench.
This is an excellent set and allows coverage of most common tap sizes up to 3/8inch and M10 sizes, and allows quick release switching between various tap sizes for projects with multiple sizes of tapped holes without changing the toolholder.
Works great on Tormach 1100MX and 770MX, and helps to smooth minor RPM variations.
Much more economical and convenient than purchasing individual ER-collet tension/compression toolholders.