High quality of Gate Drill with Medical Stainless Steel 

* made of high quality medical stainless steel 
* good flexibility and fracture resistance 
* with high quality cutting efficiency 
* with triangle cross section 
* recommended rotary speed of engine file is 250-350r/min 
* with fixed plastic washer 
* packed with 6 pcs files/box, available of single size or assorted size 

Size: 

1#, 2#, 3#, 4#, 5#, 6#, in length of 28mm, 32mm