Step 2 measure the diameter of the hole on the side of the chuck in inches with a ruler.
Different chuck key sizes.
2020 popular chuck key sizes trends in tools jewelry accessories with chuck key sizes and chuck key sizes.
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.
When it comes to drill chuck key holders grainger s got your back.
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.
If you pull out your ruler you ll see that 1 8 isn t very big at all.
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.
Shop the top 25 most popular chuck key sizes at the best prices.
Generally a chuck does not have a wide range of sizes but only two.
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.
This measurement is called the pilot shank.
Usually on the side of the drill chuck there will be some stamped numbers.
Keyless chucks are engineered to quickly loosen and tighten a tool on the chuck collar of the drill either by manual.
Determining the proper replacement chuck key for your drill can be very frustrating.
1 4 3 8 1 2 etc.
Since everyone has different needs let s run down the different grades of chucks.
The wedges grip an area of 75 mm 2 0 116 sq in and the shank is inserted 40 mm into the chuck.
10 mm 3 8 inches and 13 mm 1 2 inch.
But what if you need to drill a hole whose diameter will be larger say 20 mm.
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.
Keyed chucks offer the advantage of applying additional torque on the bit when slippage is a concern during heavy duty applications.
The chuck size looks something like.
Easy online ordering for the ones who get it done along with 24 7 customer service free technical support more.
The larger the size the bigger the shank.