Specification:
Type: 5 in 1 Multifunctional Tungsten Steel Drill

Material: Tungsten Carbide Steel

Color: Colorful

Blade diamete: 6.6mm (0.26inch)

Blade length: 13mm(0.51inch)

Shank: 2.35mm (3/32inch)

Grit: Extra Fine (XF), Fine (F), Medium (M)

Features:
1.  The drill bit is mainly made of tungsten steel. This material is not easy to rust, break or deform. 
2.  Teeth on top: Can be used to clean dead skin or cuticles.
3.  3/32" shank size and fits most standard size nail drills.
4.  Three kinds of tooth spacing design (narrow top and wide bottom).
5.  Made of carbide, the hardest material after diamond and stainless steel.
6.  Top fillet teeth, straight slot teeth design (available for forehand and backhand).
7.  Surface roughness of drill bits of different sizes.

Package Include:
1 x 

Note:
   F (fine unloading soft glue)
  M (medium common model)
  XF (extra fine unloading soft glue)

the tooth pitch gradually increases from XF to M