Arrangement for transmitting torque in a manually operated tool

Arrangement for torque transmission in manually operable tools with a tool bit (1) insertable into a tool bit chuck (5), said tool bit comprises an axially extending chuck section (2) insertable into said chuck, said chuck section (2) having axially extending entrainment faces (31) arranged to cooperate with axially extending torque transmission faces (6) in said chuck (5), first means in said chuck section (2) cooperating with second means (7) in said chuck (5) for affording retention of the said tool bit (1) within said chuck and for providing limited axial displacement of said tool bit, said first means (4) comprises at least one recess in said chuck section (2), said second means (7) comprises a locking element (8) arranged to cooperate with said recess (4) and said locking element (8) being axially and radially displaceable both to a limited extent and the limited axial displaceability of said tool bit (1) being afforded at least partially by the limited axial displaceability of said locking element (8) and said recess (4) in said chuck section (2) has an axial extent substantially equal to the axial extent of said locking element (8).