1、Adopting high quality bearing steel, which is durable and has long service life 2、Includes 1 piece wrench and 7 pieces screw dies 3、It can improve the efficiency of processing thread, a necessary tool for hand tapping operation 4、With this screw die and wrench set, the thread processing will become more easily and precisely 5、Ideal for thread processing and tapping in machine manufacturing Description: This screw die and wrench set is a general tool for hand tapping operation. It includes 1 piece wrench and 7 pieces screw dies. Adopting high quality bearing steel, which is durable and has long service life. With this set, the external thread processing will become more easily and precisely. Features: Adopting high quality bearing steel, which is durable and has long service life. Includes 1 piece wrench and 7 pieces screw dies. It can improve the efficiency of processing thread, a necessary tool for hand tapping operation. With this screw die and wrench set, the thread processing will become more easily and precisely. Ideal for thread processing and tapping in machine manufacturing. Specifications: Condition: 100% Brand New Item Type: Die & Wrench Set Material: Bearing Steel Thread Type: Coarse Thread Screw Die Model: M3 x 0.5, M4 x 0.7, M5 x 0.8, M6 x 1.0, M8 x 1.25, M10 x 1.5, M12 x 1.75 Wrench: M25 Quantity: 8PCS Package Weight: Approx. 290g Package Include: 1 x Wrench 7 x Screw Dies Note: Please allow 1-3mm error due to manual measurement. Thanks for your understanding.