Description: Suitable for general wood, metal, aluminum processing. Adjustable T-design tap wrench, can be single hand operation, more convenient using, one tool fits more drills Ideal for auto repair and machinery where metric threads are specified. Using for processing and drilling(twist drill bits even can be using for electric drill and soft metal). Straight handle design provides greater leverage, especially when using larger diameter taps. Specification: Material: High Speed Steel Color: Silver Twist drill size: 2.5mm x 61mm, 3.5mm x 74mm, 4.2mm x 87.5mm, 5.2mm x 93.8mm Taps thread: M3 x 0.5, M4 x 0.7, M5 x 0.8, M6 x 1.0 Taps size: M3 x 41.3mm, M4 x 51mm, M5 x 56mm, M6 x 61mm(M5 and M6 should applied for handheld drill) Package Includes: 4 Pieces Hand Screw Thread Tap 4 Pieces Twist Drill Bit 1 Piece M3-M6 Wrench Note: The color may have different as the difference display, pls understand. Please allow 1-3mm error due to hand test