The Chuck - One of the Most Overlooked Features on a Cordless Drill
Cordless Drill Chuck Type and Capacity
A key component of any cordless drill is the chuck. At first obviously looking into the 2 major sizes of chucks found for cordless drills:
§ 3/8" = 10 mm
§ 1/2" = 13 mm
Most cordless drills with ratings of up to 10.8 V have a 3/8" (10mm) chuck. This is sufficient for most day to day drilling operations. At the same time it gives you an easy to handle and very compact drill. Starting from the best cordless drill of 12 Volt and above, chuck size usually increases to 1/2" (13mm) giving you a much larger array of drill bits to fit and use.
Nowadays, almost all professional cordless drills come with keyless chucks, opened and closed by your hand without any extra key or tool. It's the minimum you can expect from any modern cordless drill, since you do not want to fiddle around with a key while on the work-site. |