Patent ID: 6174112
Filing Date: 2001-01-16
Classification: B25D,Y10T

Abstract:
A tool for hand-held equipment, comprising a shank (2; 22; 32) including a clamping region (3; 23; 33) having a diameter (t) equal to or greater than 12 mm; at least one locking groove (4; 24; 34) provided in the clamping region (3; 23; 33) and at least one drive groove (6; 26; 36) provided in the clamping region (3; 23; 33), the at least one locking groove (4; 24; 34) and the at least one drive groove (6; 26; 36) having each a depth (v, d) equal to or greater than 2.5 mm and opposite edges (8; 9) lying on a shank circumference and forming with each other an aperture angle (.alpha.; .beta.) equal to or greater than 50.degree..