1) Diameter :1-13mm
2) Materials: High Speed Steel M35 (5% Cobalt)
3) Art: Fully ground
4) Shank: Straight shank
5) Surface finish: White
6) Hardness : Super hardness
7) Packing: Plastic bags / Plastic boxes
8) Purpose: Drilling stainless steel ect 
9) Cutting Edge: Fast Drill Bits---118 ° Split Point, 135 ° Split Poin