Yesterday we posted a Mastercraft tool from Canadian Tire that turned an ordinary drill into a hammer drill. Today we look at their impact driver adapter, which turns a drill into an impact driver and supposedly can increase its torque by an order of magnitude.
The 3/8″ hex shaft input shaft chucks into the drill and a ring near the input shaft adjusts the torque setting. Although it’s hard to see it the above picture, the output shaft is a bit curious. The outside of the shaft accepts 1/2″ square drive impact sockets and the inside of the shaft accepts 1/4″ hex drive insert bits.
If you want to use the 6-3/4″ long by 2-3/4″ diameter adapter with a cordless drill, you probably should use a 14.4V model or better. Look to spend about $40 on this tool.