6pcs set in wooden case 15, 20, 25, 30, 35mm incl. extension 125 mm TCT Bormax 3 Prima pilot Guided, 1664506 The pilot-drill bit is ideal for drilling at an angle which is not 90° in workpieces sufaces. Can be used with the centre point as traditinal Bormax. TCT BORMAX PRIMA, 1664, 166450600