Abstract: A rotatable tool which includes a pick carrier having a recess which receives one end of a rod-shaped support secured thereto, an opposite end of the rod-shaped support as a right-cylindrical bore opening axially outwardly of an end face thereof, a pick bit is formed by a shaft having a right-cylindrical bore and a bit-end, and the shaft is received in a split sleeve which in turn is received in the bore to press-fit the bit in the bore.

Abstract: The pliers include a pair of arms each having a front operating leg and a rear handle leg, a hole in each arm between the front operating and rear handle legs, a bolt extending through the holes for pivotally connecting the arms to each other, the bolt having a head at one end and a threaded portion at its opposite end upon which is rotatably threaded a nut, and the nut and one of the pair of arms or a plate sandwiched between the nut and one of the pair of arms is provided with at least one interengaged tooth and tooth gap which prevents the nut from rotating relative to the last-mentioned arm which is additionally preferably nonrotatably secured to the bolt.