Connect Fisch Forstner Bit to Festool PDC 18/4 Drill

[Sherrence]

This is embarrassing, but I am a total newbie. I just bought a Fisch wave cutter forstner bit to drill a hole in a tv console but I can’t figure out how to connect it to my drill. Do I need an adapter?  If so, can someone please recommend one? 

 

[mino]

The Centrotec chuck does not accept "regular" hex bits .. so your best bet is to just put it in the Jacobs chuck as in a regular drill.

This one:

 

[Sherrence]

Thank you for your reply. I have that chuck but the shaft on the forstner bit is too large to fit between the three clamps even when opened to its widest. It’s a 1 7/8” bit. Package also has these dimensions OAL 90mm 3-1/2”. Are there any other options?

 

[Imemiter]

Those bits are supposed to have a 3/8" reduced shank and that's a 1/2" chuck. Are you sure the chuck is opened up all the way?

 

[Sherrence]

You were right about chuck not being fully opened. It’s a new tool and took a bit of elbow grease to open it beyond a certain point. Thank you for your help!  I’ve got a long way to go with learning how to use these awesome tools!

 

[Imemiter]

You're welcome and welcome to the FOG! I was having a similar tussle with one of those chucks not three months ago. Customer service promptly sent me a new chuck that got here just days after I figured out the problem was a user error. Now I've got to send it back.

 

[Sherrence]

Well, at  least I’m in good company!