[Design]: Double head design,it can adjust the depth by itself,automatically clamp the fixed screw firmly and not easy to fall offThe 1/4 inch with metal filter can prevent the burr and foreign matters from entering the inlet and damaging the machine.[Features]: Smooth chamfering, no ripple, no noise, no heating after long-term use, stable operation and long service life.[Light and durable]: The speed can reach 30000rpm, and the depth is c01-c15. The body is small and exquisite, and the right fillet can be easily used with one hand. Five gears can be freely adjusted to the appropriate intake speed for use,which can improve the blade life, and is easy to operate and use.[Dlade replacement]: Use a hexagon wrench to loosen the plum screw,remove the baffle plate, remove the blade screw with a ring wrench,remove the old blade,and replace it with a new one.[Safety ]: Pressure plate type safety protection switch can reduce unnecessary injury. Alloy steel baffle, safety buckle and metal button switch safe use.Specification: Reversible depth:01mm-09mmChamfering hole diameter: greater or equal to 7mmIntake pressure: 90PsiMinimum plate thickness: 3mmThe shallowest opening depth:5mmNote: The styles on both sides of the chamfering machine are random, don't accept the specified styles, but it does not affect the use, thank you.Colour: black + silverMaterial: metalPackage Contents:1 * Mini Pneumatic Chamfering Machine2 * WrenchOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.