10pcs/set hard alloy small drill bit 0.3mm-1.2mm circuit board drill pcb bit Features:1. The bit space of the drill bit is large: the chip resistance is small, the chip discharge is smooth, the heat generated by the hole is small, and the drilling is reduced.2. Extraordinary sharpness of the cutting edge: Through the use of nanotechnology and advanced grinding technology, the cutting edge of the drill bit is sharper than before, which can reduce the cutting force, reduce the drilling speed, and improve the quality of the hole wall.3. Tool design based on customer application: there are many different drilling machines to meet different application needs. All parameters of the drill bit, such as core thickness and core taper, have been carefully designed and effective.4. The cutting edge is strictly symmetrical: it is beneficial for efficient cutting and avoiding drilling offset. Descriptions:1. The blade is imported hard alloy, the handle is white steel, and all tungsten steel is also available.2. Applicable to wood, plastics and other soft materials, carved, chamfering, chamfering, chiseling, reaming, hollow and other carving operations. Specifications:Material: Hard Alloy Color: SilverBox Size: 82 x 52 x 1 0mm/3.22 x 2.04 x 0.39in Weight (with box): 37g / 1.31oz Quantity: 10pcs Packaging Information:Package Size: 120 * 80 * 10mm / 4.72 x 3.14 x 10.39in Package Weight: 37g / 1.31oz Polybag Package Included: 10 x Small Drill Bits Notes:1. Due to the difference between different monitors, the picture may not reflect the actual color of the item. We guarantee that the style is the same as shown in the pictures.2. Due to manual measurement and different measurement methods, please allow 1-3cm deviation. Thanks! ”