Replacing wooden handle

Hi. I've got a Yonex Voltric 7 where the wooden handle has split. Handle aside, the racket is in good shape (including the strings) so I've managed to get a donor racket which cracked at the frame but the handle is in good condition. It's a Yonex Voltric racket (Voltric 70 I think).

Anyway, I've got two issues with doing the change over:

1. The handle on the donor racket won't come off the shaft. It's like it's glue on. I've tried using clamps to twist the handle from the shaft but it just won't budge. Is this normal or have I just got a racket with abnormally large amounts of adhesive between shaft and handle?
2. The original racket still has bits of splintered wood under the shaft cone which I need to get out without damaging the cone or the shaft. Any ideas how I can do this?

I've already got 2 Voltric 7 rackets that are in good shape so I don't need a 3rd but if I can get (salvage) a 3rd one without much expense then I figured may as well.

Is it worth the effort though? Help and suggestions would be grateful.

TIA

 

Thank you so much, that guide is awesome. Where can I buy a new cone and new wooden handle?

 

I've no idea what grip size or shaft diameter the Yonex Voltric 7 would be. I purchased it from a UK authorised Yonex dealer so it'd be the standard UK spec. According to this website (http://www.yonex.com/sports/badminton/products/badminton/racquets/voltric-series/voltric-7/) the grip is G4,5 but I don't know what that means, does that mean G4 or G5 or is it G4.5?

Also, not sure what the shaft diameter is but I can easily measure this when I get home.

 

Thank you so much, you've been really helpful

 

Ouch, looks similar to the breaks from my racket. It's very easy to repair, just need a bit of time. Definitely worth doing as it costs just a few quid to repair instead of throwing away an expensive racket.