Item No.: P09Y371

.Classic HSS construction with titanium coating for capability and durability;

.Precise 135°split point,The cutting edge is hardened and honed for sharpness, chatter-free design with staggered cutting teeth ensure the precise countersinking and hole smooth clean;

.21Pcs Drill size:1/16",5/64",3/32",7/64",1/8",9/64",5/32",11/64",3/16",13/64",7/32",15/64",1/4",17/64",

9/32",19/64",5/16",21/64,11/32"，23/64",3/8";19pcs 1/16";3Pcs 1/4";14pcs 1/8";6pcs 3/16".