Abstract: A blade sharpener (10) comprising a frame (12) with a clamp (76) and a guide means (48) moveably attached to it to allow rotation of the clamp (76) about an axis (102), and raising and lowering of the guide means (48), both with respect to the frame (12), the clamp (76) having a first jaw (78) constructed to have various cutting instruments clamped to various surfaces of it to allow sharpening by a sharpening tool (156) carried by a sharpening member (158), a rod of the sharpening tool (158) being guided by guide means (48).