Mine used an 'A' section vee belt and I got one from:
who have been helpful and reasonably priced in the past. I no longer
have the drill so can't advise on the length. A tape measure round the
belt route should give you the outside length from which to deduce the
inside (specified) length.
Polytechforum.com is a website by engineers for engineers. It is not affiliated with any of manufacturers or vendors discussed here.
All logos and trade names are the property of their respective owners.