Bosch CLPK20-180 18-Volt 2-Tool Litheon Combo Kit Hammer Drill Driver and Reciprocating Saw The Bosch CLPK20-180 combo kit comes with 17618-01 Hammer Drill and CRS180-Recip Saw CRS180 features a compact and lightweight design, Lock-Jaw blade holder -the easiest blade change system, 1 1/8-Inch stroke allowing for more material to be removed per stroke and is a Lightweight tool which equals less fatigue. 17618-01 Features bosch durashield housing and uni-body power train to withstand real world conditions, 1/2-Inch metal chuck for increased durability and an led light great for dark or enclosed areas. Bosch litheon batteries - state-of-art lithium-ion battery technology coupled with bosch's proprietary ecp (electronic cell protection) system guarantees the optimal performance of tool and batteries even for tough work conditions. More compact and lighter than NiCad