Rubi Multidrill Plus - Tile Drilling Guide (Max 120mm diameter) With a strong RM suction cup that fixes onto smooth, rough or slightly structured surfaces. Can be fixed horizontally or vertically. Great precision and reliability - ensures accurate drilling and prevents the drill from slipping. Can be used wet or dry. Compatible with the following Rubi drill bit ranges: Drygres, Drygres 4Drill, Easygres, Foragres and Minigres. Suitable for drill bits up to (and including) 120mm diameter. Metal centring guide with great resistance to wear. Five centring points are provided for 6, 8, 10, 12 & 14mm diameter drills. Suction cup is 120mm in diameter, made from natural rubber, with excellent grip strength (released using lever). Includes a connection point for Rubi hose and tank (ref: RT-50947, available separately).