1.The nut and jaws adopt special steel ,durability and super precision
2.Suitable for super electic grinder, engravine machine and precision machine lathe
3.To be used for milling & drilling machine ,bench and wood working machine.
Scope of light, medium, heavy-based drilling connecting portable bench drill or power tool.
1. High-precision thread and tapered bore closely connected to the tool.
2. Shell, keyhole, keys after quenching.
3. Gripper special treatment, with good wear resistance.
4. Gears and gear housing Pressing the key.
5. Accuracy accurate and reliable, durable.