10Pcs/set PCB print circuit board carbide CNC mini micro drill bits

Description: Replacements for your CNC machines and any Handheld tool: Dre-mel Jewelry these long-lasting bits are made from high quality steel for a precise easy experience. It is brand new with best quality from the professional factory. Great for PC Boards Plastics Fiberglass Wood Soft Metals etc. Fine grinding process makes sharper cutting edge of the bit. With good chip resistance and smooth chip removel it is able to reduce cutting force. Specifications: Cutting Diameter: 0.15mm、0.25mm、0.3mm、0.35mm、0.45mm、0.5mm、0.55mm、0.6mm、0.7mm、 0.85mm 、0.95mm、1.0mm 、1.1mm、1.15mm( Optional ) Note:Each model corresponds to different colors and the pictures show only several types of colors. Package included : 10*PCB drill bits 1 *Plastic Box