Metal deeperator by Yato YT-44721 Made of high -speed HSS steel Intended for professional use - drilling in hard and hard -boring materials. • HSS steel provides several times faster drilling in stainless steel, structural, aluminum • 5-tight vertex "Split Point" with a 45 ° angle allows drilling without prior scoring • The sanded surface increases drilling precision • durable and resistant to damage and raining • a hexagonal handle • hexagonal handle HEX ction allows mounting to battery screwdrivers and stroke keys.