6 PCS / Set HSS Multi-Function Integrated Composite Tap Hole Tapping Chamfering, 6 PCS / Set Hole Tapping Chamfering atago hand refractometer manual Built-in: 300mAh lithium battery

Built-in: 300mAh lithium battery

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6 PCS / Set HSS Multi-Function Integrated Composite Tap Hole Tapping Chamfering, 6 PCS / Set Hole Tapping Chamfering atago hand refractometer manual Built-in: 300mAh lithium battery1. Material: high speed steel 2. Length: M3 is about 6. 6 cm, M4 is about 6. 7 cm, M5 is about 6. 7 cm, M6 is about 6. 8 cm, M8 is about 7 cm, and M10 is about 7. 1 cm. 3. Diameter: M3 is about 3 mm, M4 is about 4 mm, M5 is about 5 mm, M6 is about 6 mm, M8 is about 8 mm, and M10 is about 10 mm. 4. Shank diameter: general hexagonal handle, 6. 35 mm 5. Weight: about 82 grams set 6. Scope of application: suitable for rapid drilling and tapping processing