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How to find out the chuck size

Shop for Cordless Screw Drivers

Cardboard box There are several ways to find out your tool’s chuck size:

1. Information such as the cordless screwdriver’s chuck size can usually be found on the tool’s original packaging, or in the instruction manual. If you don’t have these items, then you can consult the manufacturer.

Chuck size and tape measure 2. You can also get a rough idea of the tool’s chuck size by measuring across the diameter of the chuck with a tape measure or calipers.

The diameter will tell you the maximum shank diameter it can accept.

Cashier 3. Another way to find out the chuck size is to take your cordless screwdriver into a tool shop.

The staff will either be able to tell you the chuck size from looking at the chuck, or will try different bits to see which one fits.