Thread: M10 x 1.25, thread type: left-hand thread, head diameter: about 14 cm, height: about 7.5 cm The spool has a 2.4 mm mowing line, suitable for mowing lines below 3 mm, for example: 2.4 mm, 3.00 mm. Universal line head: suitable for all M10 x 1.25 left-hand thread brush cutters, very suitable for roads and gardens, cutting and trimming large areas of grass and weeds.