ITEM NAME:13 in 1 Straight Shank 1mm to 6.5mm Twist Drill Bits Set D2V2 13 in 1 Straight Shank 1mm to 6.5mm Twist Drill Bits Set D2V2 Product Name : 13 in 1 Twist Drill Bit Set;Features : Straight Shank Material : HSS, Aluminum; Case Size :13.2 x 7.5 x 1.3cm/ 5.1" x 2.95" x 0.51" (L*W*T); Color : Silver Tone Bit Size ( Diameter * Length): 1.5mm x 36mm, 2mm x 50mm, 2.5mm x 56mm, 3mm x 61mm, 3.2mm x 64mm, 3.5mm x 70mm, 4mm x 75mm, 4.5mm x 8mm, 4.8mm x 82mm, 5mm x 85mm, 5.5mm x 92mm, 6mm x 92mm, 6.5mm x 96mm. Suitable for wood, malleable iron, aluminum, plastic etc. Helix flute design will make the drilling be more easy and effortless. Great replacement for your dull drill bit to improve work efficiency. Straight shank design is more suitable for many electric drills (here is not included). Package Content : 1 x 13 in 1 Twist Drill Bit Set ? Note:Light shooting and different displays may cause the color of the item in the picture a little different from the real thing.The measurement allowed error is +/-1-3 cm.