Abstract: A drill chuck key with ejector means for disengaging at least its geared head part or at least its pilot portion from the chuck when released by the user.

Abstract: A chuck for drills and the like including at least three jaw elements of tapered form connected to a jaw carrier by means of flexible elements. Means are provided for urging the jaw elements axially relative to a nose cone so that they act against a frusto-conical bore portion of said nose cone and are urged radially inwards, accompanied by flexing of the flexible elements, to grip the shank of a drill or the like.

Abstract: A drill chuck including a main body part having jaws slidably mounted for converging movement in respective guides. A nut member is rotatably mounted on said main body part and has screwthreaded engagement with the jaws. A cylindrical sleeve is connected at one end to the nut member and at its other end surrounds a portion of a further body part. The further body part, which is provided with mounting means for connecting the chuck to a power tool driving spindle, has an initial degree of co-axial alignment with the main body part but a self-centering action is allowed when drilling.

Abstract: A drill chuck of the angularly sliding jaw type including a jaw actuating nut and a sleeve associated with the nut mounted on the body of the chuck, various forms of abutment means being provided for retaining the sleeve in its required position relative to the nut.

Abstract: A drill chuck having converging slidable jaws which are extendible and retractible relative to the body of the chuck by means of a key operable bevel gear part and an associated nut rotatable relative to the body, together with a driving component for the chuck for detachably mounting the chuck to the spindle of a power tool, and further provided with means for producing a self-centering action between the body part and the driving component. Various modifications of the components of the chuck, particularly the nut, bevel gear part, driving component and the self-centering means are also disclosed.

Abstract: A hand tool including a blade or tool part with a connected tang and a handle part with an aperture extending axially from one end for receiving the tang, a locking pin extending diametrically across the handle part and the tang being provided with a slot for the passage of said locking pin to a cross bore in the tang, the locking pin being rotatable or axially movable to engage it with said cross bore.

Abstract: A hand tool including a blade or tool part with a connected tang and a handle part with an aperture extending axially from one end for receiving the tang, a locking pin extending diametrically across the handle part and the tang being provided with a slot for the passage of said locking pin to a cross bore in the tang, the locking pin being rotatable or axially moveable to engage it with said cross bore.