WHILE USING A POWER ANYTHING IS LARGELY A POOR CHOICE FOR ANY WORK ON AN ANTIQUE, THE RULES APPLIED TO SOMETHING MORE MODERN ARE SOMETIMES A BIT DIFFERENT. IN EITHER CASE THE GOAL IS TO RESTORE AND FIX THE ITEM NOT TO HARM OR DESTROY IT. IN THE CASE OF HUNTING KNIVES THE REPAIRS ARE USUALLY DONE BY REVERSING THE CONSTRUCTION OF THE ITEM AND THEN REPLACING OR SECURING BAD PARTS WITH THEIR NEWER COUNTERPARTS.
THE BEST ADVICE FOR YOU WOULD COME FROM KNIFE MAKERS AS THEY WILL IMMEDIATELY SEE WHAT NEEDS TO BE DONE AND KNOW THE BEST TOOLS AND TECHNIQUES FOR MAKING THE RESTORATION. YOU CAN FIND KNIFE MAKERS AT MOST GUN SHOWS OR IN ADDS IN KNIFE MAGAZINES OR PERHAPS EVEN IN THE LOCAL YELLOW PAGES. THEY ARE USUALLY A FRIENDLY GROUP AND CAN GIVE ADVICE OR FIX IT FOR A PRICE. GOOD LUCK