This 120-piece Drilling and Screw driving bit set offers a variety of the most commonly used drilling and driving bits all in one kit. Ideal for drilling into a variety of surfaces including wood, metal and plastic. The patented Bit Grip Magnetic Bit Collar holds screws securely for one-handed use. Simply slide the collar onto a 2 In. impact bit for 4X Magnetic Force to hold fasteners securely. Includes (75) 1 In. screwdriving bits, (21) 2 In. screwdriving bits, (2) 3-1/2 In. screwdriving bits, (5) nut drivers, (13) drill bits, (2) spade bits, (1) universal magnetic bit collar, (1) magnetic insert bit holder/driver guide, and convenient carrying case to keep your bits organized and easy to access.