| 摘要 |
A boring tool comprises a body (1) having, at a free end thereof, two insert holders (5') which are radially adjustable by displacement relative to a groove (11) defined by two opposing boundary surfaces and accommodating two elongate guide lugs (14') on the insert holders. The groove (11) merges, at opposite, parallel edges (12, 12'), into first support surfaces (13, 13'), which are each inclined relative to the tool axis, more specifically in a rearward-outward direction from said edge (12, 12') so as to form an acute-angled wedge-shaped portion of material between each of said first support surfaces and a respective groove-defining surface, and which are each adapted to cooperate with similar, second support surfaces on the holders (5'), said other support surfaces being similarly inclined, more specifically relative to boundary surfaces of the guide lugs, at substantially the same acute angle as the angle between cooperating surfaces of the wedge-shaped portions of the tool body. <IMAGE> |
