Specification Brand : TOP-VIGOR BulletPoint1 : Drilling Size - shank diameter: 3mm / 1/8"; Cutting edge diameter: 1mm; cutting edge length: 9.5mm; overall length: 38mm / 1-1/2" BulletPoint2 : What You Get - 10pcs 1mm micro drill bit BulletPoint3 : Durable Tungsten Steel - Crafted from tough tungsten steel, the 1mm micro drill bit set has wear resistance, high hardness, bending strength, anti-impairment and highly working efficiency. Strong and druble enough to have a long life. BulletPoint4 : Precise Drilling - With sharp cutting edge, milling groove and clean surface, these 1mm pcb drill can drill efficiently and remove glitches or scrap cleanly. BulletPoint5 : Versatile Application - Ideal drill bit for circuit boards, CNC engraving plexiglass, 3D Printer Nozzle Cleaning, Amber beeswax, bakelite, jewelery, metal,Fiberglass, plastic and other drilling needs. Compatible with engraving machine, PCB drilling machines, CNC and high precision special drilling equipment. Color : Gold FinishType : Uncoated GpsrSafetyAttestation : 1 ItemName : TOP-VIGOR 10pcs 1mm Micro Drill Bit, Tungsten Steel PCB Drill Bit with 1/8 Inch Shank for Print Circuit Board Stone CNC Engraving ItemPackageDimensions_Height : 15.4178 centimeters ItemPackageDimensions_Length : 3.9116 centimeters ItemPackageDimensions_Width : 7.4168 centimeters ItemTypeKeyword : circuit-board-drill-bits Manufacturer : TOP-VIGOR Material : Tungsten Steel ModelNumber : 10-1MM NumberOfFlutes : 2 NumberOfItems : 10 NumberOfPieces : 10 PartNumber : TH0545F-FBAPZUS-1-T6 ProductDescription : The tip drill bit adopts a spiral flute design, mirror polishing. It can discharge chips and waste generated by cutting more effectively, reduce cutting resistance and heat accumulation, improve cutting speed and work efficiency, and reduce vibration and noise, maintain the cutting process's stability. This mini twist drill bit is made of solid carbide, which has the characteristics of high hardness, high strength, strong wear resistance, good corrosion resistance, and excellent thermal stability. These properties allow the drill to maintain consistent cutting capabilities and a long service life—without worrying about breakage or deformation. The surface treatment of titanium coating has a low friction coefficient, which can reduce friction and wear during cutting; the tool surface is smooth and has strong anti-adhesion and good self-lubricating properties, which helps to improve the quality of the cutting surface smoothness and machining accuracy, improving cutting quality. The drill bit has a precision cutting edge to maintain smooth cutting; it is designed with a positioning ring to easily achieve accurate positioning while enhancing the stability and shock resistance of the drill bit; the cutting shank adopts a chamfer design, which has high precision and can reduce installation and debugging time. PCB drill bit is for the precision processing of jewelry, printed circuit boards, plastics, fiberglass, acrylic, wood, soft metals and other materials, suitable for PCB drilling machines, CNC engraving machines and high-precision special drilling equipment.