I bought the Rigid 12 V X2 cordless drill. At the Depot I could only try the 14 V version. It ran smoothly and stopped quickly when the trigger was released. When I got the 12 V drill home I found that it runs smooth, but when you let off the trigger it makes a noticeable ratcheting (clacking?) noise when it stops. Has anyone else experienced this? Just want to know if it is normal or not. Odd that the 14 V stops smoothly.