As you may have guessed, the internal arrangement is a planetary gear drive. You might consider if you want to print this using resin or FDM printing. You also need some screwdriver bits ...

If you buy something via one of our links, we may earn a commission. The 66-piece Sunhzmckp Magnetic Screwdriver Set is on sale for $30, a 35% discount from its usual price of $45. This ...