59x Precision Mini Micro Hand Twist Drill Bits Pin Vise Set Rotary Tools DIY Kit Product Feature: Pin Vise Hand Drill: Made of aluminum alloy, this pin vise hand drill is durable and firm, adopting 3 claws chuck and 0.3 - 3.4 mm range of adjustable clamp, its tail can be rotated, sturdy and convenient for you to operate Micro Twist Drill Bits: 3 Pieces of 0.5,0.6,0.7,0.8,0.9,1.0mm size, a total of 18 pieces 2 pieces of 1.1,1.2,1.3,1.4,1.5,1.6,1.7,1.8,1.9,2.0mm size, a total of 20 pieces 1 piece of 2.1,2.2,2.3,2.4,2.5,2.6,2.7,2.8,2.9,3.0mm size, a total of 10 pieces PCB Mini Drills: PCB mini drills are made of tungsten carbide, the shank diameter is approx. 3.175 mm, overall length is approx. 38 mm, which fit for processing PCB, normal FR-4, CEM-3 boards, SMT, CNC, molds, plastic, circuit board, carbon fiber, composite board, and so on. Practical and portable: Manual hand drill set is easy to carry or store in a toolbox or in the pocket, making your daily work more convenient, which are suitable for electronic assembling, tooling, model making, winding, home decorating, and so on. Package Content: This hand drill bits set includes 1 piece pin vise hand drill, 48 pieces of micro twist drill bits (0.5-3.0mm), 10 pieces of PCB mini drill bits (0.3-1.2mm), a total of 59 pieces for your craft carving DIY work. How To Use： Step 1: Take out the suitable drill bit, and half unscrew the vise head Step 2: Half insert the drill bit, and screw the head tightly. Step 3: Target the place where you are going to drill a hole, use one hand to fix the top of handle while using the other hand to rotate the handle. Note: The size of 0.1-1 mm pcb drill bit is too small. It is not recommended to use it by hand. It is recommended to use electric drill or mini electric mill with fixed lathe or clamping table. Not suitable for hard materials like iron, steel, stone, glass, tile, etc. The pin vise is manual, not electronic. Small hand drill, only can clamp the drill bits of under 3 mm. Product Specification: Type: Hand Drill Set Color: Multicolor Quantity: 59Pcs(1Pcs pin vise hand drill, 48Pcs micro twist drill bits (0.5-3.0mm), 10Pcs PCB mini drill bits (0.3-1.2mm)) Pin Vise Hand Drill Material: Aluminum alloy Twist drill bit Material: steel PCB Mini Drill Bits Material: Tungsten steel Chuck Range: 0.3 - 3.4 mm range PCB mini drills Length: approx. 38 mm PCB mini drills Diameter: approx. 3.175 mm Application: for processing PCB, normal FR-4, CEM-3 boards, SMT, CNC, molds, plastic, circuit board, carbon fiber, composite board, and so on Application 1: electronic assembling, tooling, model making, winding, home decorating, and so on Package Included: 1 x Pin vise 48 x Twist Drill bits 10 x PCB Mini Drill Bits