13 piece titanium bit set a metal cassette is included westfalia
13 piece titanium nitride coated wood drill bit set titanium 600 longer life higher cutting speed less friction higher hardness level than hard metal the model of wood drill used by the professionals the drilling dust slots enable a rapid and clean removal of the drilling dust the ground central points and the two shoulder cutters enable precise drill starts and leave clean drilling holes 600 greater lifespan due to the titan nitride coating compared to conventional wood drill