10pcs 0.3mm To 1.2mm Pcb Mini Drill Bit Tungsten Steel Carbide. Features: Cutting Edge Strictly Symmetrical: Conducive to Efficient Cutting, to Avoid Drilling Offset Bbased on Customer Application Tool Design: Drill Variety, to Meet the Needs of Different Applications. Drill All Parameters, Such As Core Thickness, Core Taper, Long Life, It Can Drill 2000-5000 Pcs Under Normal Working Conditions, Also Can Return Grinding 4-5 Times As a Result of the Use of Nano-technology and Advanced Grinding Technology, Drill Bit Cutting Edge is More Sharp Than Before, Can Reduce the Cutting Force, Reduce the Drilling Rate, Improve the Quality of the Hole Wall; Specifications: Condition: New Type: Electrothermal Ceramics Model Number: 0.3mm to 1.2mm PCB Mini Drill Bit 100% Brand New and High Quality Type: Clean the Special Drill Bit Size: 0.3-1.2 Mm Color: Multicolor (Send Ramdom) Carbide (tungsten Steel) Material, with High Hardness, High Wear Resistance, anti-bending, Anti-damage Processing Range : Applicable to the Circuit Board, Electronics, SMT, Mold, Metal Processing, Communications Drill Bit Chip Space: Chip Resistance is Small, Smooth Chip Removal, Drilling Heat a Small, Reduce Drilling . We are an international seller, your order will be shipped from abroad so please allow the necessary time of minimum 14 working days for delivery right now depending on where you ship to, due to ongoing delays in postal deliveries globally.