As a neccessary violin making tool for luthiers, can be used with electric purfling groove cutter. Feature the function of electricly grooving, suitable for violins. Made of aluminum, full metal constructure, sturdy and durable. Violin making tools-- small and compact size, light in weight, you can carry and use it wherever you go Electric purfling groove cutter-- milling cutter violin making tool electric purfling groove cutter milling bit violin tools parts the exquisite craftsmanship can serve you well without breaking easily Violin tool-- this drill bit can accommodate violin tuners in one size fits all designs Musicial instrument tool-- this drilling bit can be with electric purfling groove cutter Luthier tool-- small and compact size, light in weight, you can carry and use it wherever you go. Colour:As Shown Material:aluminum Package Contents: 1 x Violin Purfling Support with 2 Drilling Bits Only the above package content, other products are not included. Note: Light reflection 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.