The Dümmel Ultramini tool-line is a must for turning smallest bores. The inside bore machining of small diameters has always been difficult and it is not easy to obtain the ideal tool. The Ultramini tool-line covers more than 1.000 different standard inserts which could be clamped in only two toolholders. Of course the complete Ultramini program is available on stock.
Cutting data for grooving standard values for cutting speeds
Technical information and general standard values for threading