50Pcs Plating Titanium Coated Metal HSS High Speed Steel Drill Bit Set Tool Please buy my products only. we cannot sure other sellers are selliing guaranteed drills. HIGH SPEED STEELPackage included:50xDrill Bit Plastic And Aluminum classic high speed steel construction with titanium coating for proven capability and durabilityHss Drill Bit Set For Wood. QUICK CHANGE 1/4 inch hex shank fits into all power tools more easily and securely, specially for locking into quick change chuckIdeal For DIY, Home And General Building/Engineering Using ORGANIZED HOLDER set includes a drill bit holder with size index for easy storage and organizing SET INCLUDES 1mm,1.5mm,2mm,2.5mm,3mm Note a. Please allow 0.1-0.3mm error due to manual measurement. pls make sure you do not mind before you bid. b. Due to the difference between different monitors, the picture may not reflect the actual color of the item.