I understand people’s fear of visiting Chevron but it is mostly unfounded and sad that people feel that way. By the way, it’s the most unfortunate when people say things like “there plenty other places to visit in Israel.” Chevron is the 2nd most holy place in the world (after the Har Habayit). Please remember, when you come home, you must always visit Grandma & Grandpa.
As for the practical aspect – the 160 bus is a green bus that is armored for protection. It runs from Yerushalayim right up to the entrance of the Mearat Hamachpelah. You can pick it up from the Central Bus Station in Yerushalayim or from the Malcha Mall or from the bus stop right before the “tunnel route” from Gilo to the Gush. You can also pick it up on Route 60 in the Gush.
You can get the schedule on Egged’s English site here http://mslworld.egged.co.il/eggedtimetable/WebForms/wfrmMain.aspx?width=1024&company=1&language=en&state=2
If that link doesn’t work, then google “Egged bus schedule” –> choose the English site –> choose Find a Timetable and fill in the details. Depending on time of day, the bus usually runs every 30 – 60 mins. In the middle of the day, there may be a larger gap. The bus takes a predictable approx. 1 hour to get there from Yerushalayim.
You can also contact the Hebron Fund via their website to find out about tours with them. Their tours offer an armored bus from Yerushalayim – I believe leaving from outside the Inbal hotel. You can also take a regular Egged bus there and ask a tour guide to meet you when you get to Chevron. Enjoy the trip and make the most of it!!