Pin Vise: Made of high-quality aluminum alloy, strong and durable, with three-jaw collet and adjustable clamps in the range of 0.3 - 3.4 mm, it is sturdy and convenient for you to operate, and its tail is rotatable for your convenience Bench vise: Made of aluminum alloy and plastic, light weight and small size, suitable for you to hold and carry, designed with 4 plastic clips for holding square, round and irregular objects in size 0 - 57mm Twist drills and micro drills: The drills are lightweight, take up no extra space, and can be used to work with wood, plastic, rubber, PVC, walnut, mold, bone, angle, amber, olive, fiberglass, and other materials Package Contents: Comes with 1 x Needle Vise, 10 x PCB Mini Drills, 1 x Bench Vise and 25 x Twist Drills, 17 different sizes, plenty in quantity and style to engrave your favorite crafts or DIY sculptures 37pc set one (0.3-1.2 fixed shank drill + 25pc twist drill + hand drill + large clamping bed)