Twist-lock connection and tool utilizing same

Details Twist-lock connection and tool utilizing same Twist-lock connection and tool utilizing same

B - Operations, Transporting

25

F

7/2

B25F 1/00 (2006.01) B23B 31/113 (2006.01) B25F 3/00 (2006.01)

Patent

CA 1150453

Case 3700 TWIST-LOCK CONNECTION AND TOOL UTILIZING SAME ABSTRACT Apparatus for attaching a drill bit to a power tool. A first adaptor can be chucked into the tool. A second adaptor has a shank with a first longitudinal groove extending from one end and a second lateral groove intersecting the first. The shank is received in a bore of the first adaptor and a protrusion engages in the first and then the second groove as the shank is inserted and then rotated. The bore has a resilient spring member which engages the shank of the second member and prevents undesired counter-rotation. The first adaptor is equipped with a hexagonal recess which can, alternatively, engage hex-headed fasteners or the hexagonal stem of an internal recess driver attachment.

379206

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