Item No.: P09Y6103

.Material:carbon steel + YG6X
.Spear-pointed tip design to solve bit wander and bit walking
.4Pcs include 1 x 1/8",1 x 3/16",1 x 1/4",1 x 5/16",which meet your different needs perfectly
.Drill at a low speed to avoid fracture
.Use water lubrication will extend drill bit service life considerably
.Do not use impact mode of drills or hammers when use the drill bit
.Packing size:15x8cm,Approx 50g/set;