Abstract: A metal drive V-belt has a prefolded portion forming a plurality of abutting drive blocks. The drive blocks have longitudinally aligned lateral slots in which are disposed circumferentially extending radially abutting nested continuous metal band members. The metal band members maintain the drive blocks in a continuous loop. The slots have smooth radius corners to provide stress relief. The radial innermost of the nested bands have a chamfer formed on the inner edges thereof and a longitudinally extending locking bead which mates with the next radial outermost continuous band.