Post by pixman sat feb 05 2011 3 40 pm there s a listing of the various jacobs chuck keys in their website but of course it only references the pin size and the chuck model number to match them up.
Drill chuck key sizes chart.
Nothing is more frustrating than losing the chuck key to your drill.
The drill size chart below contains all commonly used centre drill bit sizes.
The best thing to do is measure the diameter of the pilot hole shank and match that diameter with the drill chuck size you have.
Fits most popular chucks.
A power drill has a chuck on the front which adjusts with a chuck key to hold drill bits of varying sizes.
It turns clockwise to close when a drill bit is inserted in the chuck and counterclockwise to loosen.
Centre drill bit sizes.
Fractional and metric sizes per.
The dual head is reversible to handle 3 8 in.
Therefore you must find a place to store the key of the chuck.
Dual head 3 8 in.
It was pre rockwell delta drill press and was old even then so i don t know if the t 5 key i ve been using is the right key it s almost certainly not the originally key.
The drill press with the supreme chuck is originally from the shop where i worked from 78 to 99 when they went belly up i bought many of the tools.
This is the main problem.
So you should have deep knowledge about drill chuck sizes.
The key fits into the key lock on the side of the drill chuck.
If your drill chuck key is not listed it is because we do not have a cross reference for every chuck manufactured.
The round key has serrated teeth like a gear.
They are commonly used to drill lathe centres and spotting drills i e marking holes to guide twist drilling.
Determining the proper replacement chuck key for your drill can be very frustrating.
The chuck key fits the most popular chuck sizes and the ratchet action provides fast easy adjustment of your drill chuck.
Drill bits also called twist drills are available with straight or tapered shanks though the most common drill bits will have straight shanks.
Maybe the keyless drill chuck is more convenient but we are here to discuss the chuck with the key.
If you lost the chuck purchase a replacement.
These specialist drill bits are used for drilling centre holes at two different angles 60 degrees and 90 degrees.
Such a small object can stop your project in its tracks when you can t change your bit.
If you lose the key.
It is also convenient but the key tends to get lost.
Usually on the side of the drill chuck there will be some stamped numbers.
Making sure you get the correct sized chuck avoids a second trip to the hardware store.
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.
