Dewalt d21520 variable speed mixer drills 710w 110230v dewalt d21520 gb this 230v mixer drill from dewalt is ideal for the professional tradesman as it offers a variable speed reversing switch for greater control of a wider range of applications manufactured to a high standard with a robust design and metal gear case for greater durability 2 position rear spade handle and 3 position side handle providing greater control during use the drill produces 550min providng increased torque fo