Grinding needles sizes: 13 different diameters: 0.4 mm 0.5 mm 0.6 mm 0.7 mm 0.75 mm 0.8 mm 0.9 mm 1.0 mm 1.05 mm 1.1 mm 1.2 mm 1.4 mm and 1.6mm meet your various needs</br>Suitable material: the bridge saddle file and card grindings are all made of stainless steel smooth and easy to use and it is very durable so you can use them for a long time</br>Grinding stone: the size of this grinding stone is 1.2 cm in length 1.2 cm in width and 10 cm in height suitable size and easy to grasp hard material make it convenient to grind</br>Small volume: this set of tools is small in volume so it is very easy and convenient to carry so when you want to take your guitar to travel you can take this in case of breaking</br>Package includes: there are 13 pieces of grinding needles in different sizes 1 bridge saddle file and 1 grinding stone the needles and the file are stringed together with a ring</br></br>Product Description</br></br><br>Mudder guitar bridge saddle file 13 sizes stainless steel grinding needles and grinding stone for guitar ukulele <br> <br>Different sizes meet your various needs: <br>This set of grinding needles have 13 different diameters: 0