100pcs Twist Drill Bit Set Straight Shank HSS HSteel Drill

Product information： Features: Straight shank design is more suitable for many electric drills and drill machine (not included). Sharp and twisted flutes will make drilling easier. It is suitable for wood, aluminum, plastic or other materials. Ideal for DIY, family and general building / engineering use. Specifications: Design: straight shank. Material: HSS4241 titanium coating. Surface treatment: white drill (original color), titanium plating. Diameter and total length: 20pcs x 1mm twisted position,10pcs silver +10pcs gold 20pcs x 1.5mm twisted position,10pcs silver +10pcs gold 20pcs x 2mm twisted position,10pcs silver +10pcs gold 20pcsx 2.5mm twisted position ,10pcs silver +10pcs gold 20pcs x 3mm twisted position, 10pcs silver +10pcs gold Notes: 1. Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Thank you! 2. Please a