Skil 5 Tool 18 Volt Lithium-Ion Cordless Combo Kit with Two Batteries & Charger Certified Refurbished Skil 5 Tool 18 Volt Cordless Combo Kit with Two Batteries &amp; Charger 2-speed optimized torque for screw driving and speed for drilling 1/2 in. keyless chuck for fast, easy bit changes 20 + 1 clutch settings Convenient side assist handle and on tool bit storage