D&B-12W Water Well & SPA Drilling Rig D&B-12W Water Well & SPA Drilling Rig The Model 12W Is a Popular Water Well / SPA Drilling Rig. Please Refer to the Datasheet Below for More Details. Specification Model Name12WMain UsageWater Well / SPABuilt-In Compressor Engine (Basic) Max PowerD4DA 105 HP / 2300 RPMEngine OptionD4DDRod Size (mm) Drilling Depth (m) Pull-Up Capacity12 tonsRig Weight5,800 kgRig Size (mm) D&B 12W D&B 12W D&B 12W