Delapena VHM-40 Manual Delapena VHM-40 Honing Machine. Instruction and Maintenance Manual with Electrical Schematic. Includes a copy of the booklet: "Delapena Recommended Honing Speeds & Honing Stone Pressures" Manufacturers: Delapena Models: 40 VHM VHM-40 Contents: Operators Manual Maintenance Manual Electrical Diagrams