vevor (tool only) vevor diamond core drilling machine, 0.8-6.3in drilling diameter handheld core drill rig with carrying case, 2000w rugged concrete core drill, for concrete brick block stone, 0-1800rpm stepless speed is up for auction in Tools & Home Improvement. The current bid is $1.00, 99% below the $110.90 MSRP, in As Is condition. This auction has ended — similar items appear in live auctions regularly.