SBE 127 18-EC Bandsaw 18V Bare Unit - MEXCO A11LC22, The MEXCO Slotted Dry Core Drill, XCEL Grade. Laser welded, castellated segments allow for a faster and accurate drilling experience due to the high diamond grit concentration and rooftop segments. MEXCO dry core drills should be used in conjunction with a minimum 850W+ drill motor fitted with a slipping clutch. Suitable for dry cutting. MEXCO A11LC22 Slotted Dry Core Drill XCEL Grade 22mm