To provide a chip collecting tool suitable for preventing heating by frictional heat and rotation mechanical loss of bearings relatively fixing a chip collecting cover with respect to a main spindle in a milling tool having a horizontal axis, vertically erecting a work surface and automatically sending chips downward.

The milling tool 1 is attached to the horizontally installed main spindle 6 via an arbor 3, a ring rotating groove 3c is formed in an outer circumference of the arbor 3, the bearings 10 are provided in a plurality of portions in an inner side of a support base 31 composing a cover part 30, the bearings 10 are abutted on the ring rotating groove 3c, a weight is provided below the support base 31, resiliently supported auxiliary bearings 20 are provided in positions facing the plurality of bearings, and the cover part 30 is relatively fixed with respect to the main spindle 6.