The hand drill bits set includes 1 hand drill, 25 twist drill bits, and 10 PCB mini drill bits, suitable for your craft carving DIY work The pin vise hand drill is made of Metal, it adopts a three-jaw chuck and an adjustable clamp in the range of 0.3-3.4 mm, and the tail is rotatable, the most common use is precision drilling, it is sturdy and convenient operate PCB mini drill is made of tungsten carbide, the total length is about 38 mm, 10 sizes: 0.1-1 mm, suitable for processing PCB, SMT, CNC, ordinary FR-4, -3 boards, circuit boards, carbon fiber, composite panels, etc. The mini twist drill bit is made of high-speed steel, light in weight, compact in size, does not take up extra space, is not easy to rust, does not deform, and can be used repeatedly for a long time Mini drill bit set is suitable for processing wood, drilling, plastic, rubber, PVC, walnut, model, bone, olive, fiberglass, and other materials Material: Metal colour: silver+black Package Contents: 1 x hand drill 25 x twist drill bits 10 x PCB mini drill bits Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.