Hilti DD110-D Diamond Core Drill 110v. Hilti DD110-D Diamond Core 110v. Hilti DD110-D Diamond Core 110v is used but in perfect working condition. A perfect working Drill that is ready to be used. 110v Long corded drill. ITEM – Hilti DD110-D Diamond Core 110v. ITEMS INCLUDED – Hilti DD 150-U Wet & Dry Diamond Core Drill. Once the items leave the premise it is out of our hands and we are reliant on the couriers. We understand the courier can be frustrating at times but we are restricted to who we can use and we always try to keep the cost down for our customers. To be eligible for return, the electrical goods must be in their original condition, unopened, unused, and with all accessories included.