Danyang Futai Tools Co., Ltd. [China]

Step drill bit set perfect for drilling multiple-size holes plastic and wood using a single bit easy to keep sharp,

 HSS Step Drills Bit

Item No. JY004DSize: 3-14,5-20,16-30.5 mmQty.: 20 sets / CTNMeans: 40x25x18 cmG.W./N.W.: 7.5 / 6.5 kgs

step drill bit set