Description: High speed steel,Durable.with Titanium finish which will help them last longer. Mainly consists of a handle and a work Ministries. Working part serves as a guide portion of the guide portion and preparedness grinding effect, the chip flutes formed helically to facilitate guide crumbs. Pre-drilling holes keeps wood from splitting before putting a screw in it and makes adding hardware go much smoother. Keeps the heads of screws from stripping. They are very useful doing some type of DIY , craft project and General Building/Engineering Using, it can be used to drill holes in a variety of surfaces including metal, wood and plastic. Specification: Category: Straight shank twist drill Material: HSS Shank Diameter: 6.35mm hexagon Size: 1.5mm?2.0mm?2.5mm?3.0mm?3.2mm?3.5mm?4.0mm?4.5mm?4.8mm?5.0mm?5.5mm?6.0mm?6.5mm Package Includes: 13 Pieces Drill Bits Sets Note: Please allow 0.5-1 inch difference due to manual measurement.(1 inch=2.54cm) Please check the size measurement and the picture carefully before making payment. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Please understand,Thank you
