10pcs 1/8" Shank 1.8mm Tungsten Carbide Blue Coated End Mill CNC Router Bits 9mm(ID)x11mm(OD)x300mm(L) Inner Diameter: 63mm / 2

Inner Diameter: 63mm / 2

provides great corrosion resistance performance

Inner Size: 90*90*70mm/3

Universal Joint Top Hole Diameter: 2mm

Used for 6mm slot standard 20mm aluminum extrusion profiles

10pcs 1/8" Shank 1.8mm Tungsten Carbide Blue Coated End Mill CNC Router Bits 9mm(ID)x11mm(OD)x300mm(L) Inner Diameter: 63mm / 2Made of premium tungsten carbide, the router bits have excellent hardness, sufficient bending strength, wear resistance, durability, and good milling and cutting performance to ensure high working efficiency. Carbide ensures the bits can withstand the high speed and high stress requirements of CNC machining. The blue coating on end mills increases hardness, reduces friction and heat, improves lubricity, and protects bits from rust and corrosion.