Different Chuck Key Sizes

Keyed chucks are engineered to either loosen or tighten the hold on a tool by using a key.

Different chuck key sizes.

Step 2 measure the diameter of the hole on the side of the chuck in inches with a ruler. Generally a chuck does not have a wide range of sizes but only two. If you pull out your ruler you ll see that 1 8 isn t very big at all. The wedges grip an area of 75 mm 2 0 116 sq in and the shank is inserted 40 mm into the chuck.

This measurement is called the pilot shank. Usually on the side of the drill chuck there will be some stamped numbers. 1 4 3 8 1 2 etc. Shop the top 25 most popular chuck key sizes at the best prices.

I tend to replace the bent coathanger type of key with a cross drilled type although i have broken teeth from the cheeper home store variety. The chuck size looks something like. 10 mm 3 8 inches and 13 mm 1 2 inch. One of the more popular brands is jacobs and most manufacturers will list an equivalent number which can make determining a replacement key a bit easier.

But what if you need to drill a hole whose diameter will be larger say 20 mm. Easy online ordering for the ones who get it done along with 24 7 customer service free technical support more. Keyless chucks are engineered to quickly loosen and tighten a tool on the chuck collar of the drill either by manual. When it comes to drill chuck key holders grainger s got your back.

Since everyone has different needs let s run down the different grades of chucks. Unless a real oddball most chuck keys will be listed by pilot size. This is the most common size and takes a hammer up to 4 kg. The larger the size the bigger the shank.

I find an old round shoe lace tied to a key for the hand drill by the cord plug not only reminds you to unplug before changing bits. 2020 popular chuck key sizes trends in tools jewelry accessories with chuck key sizes and chuck key sizes. There are 2 major chuck sizes that most handheld drills have 3 8 or 1 2 if we crunch the numbers we can see that a 1 2 chuck is only 1 8 larger than a 3 8 chuck. Determining the proper replacement chuck key for your drill can be very frustrating.