6pcs 90 degree triangular end mill set, suitable for metal and some non-metallic material processing, such as carbon steel, steel, thin iron plate, insulation board, PVC board, aluminum plate, soft and hard wood, plastic, etc. Titanium coated bevel cutter is very strong, high precision for circle processing and other durable features. These bevel flutes eliminate burrs and leave no scratches. Universal size, compatible with all kinds of drill bits, drill presses, including vertical drill presses and other common end mills. Total length: 63mm, 61mm, 59mm, 48mm, 47mm, 43mm. Top diameter: 20.5mm 16.5mm 12.4mm 10.4mm 8.3mm 6.3mm. Bottom Diameter: 10mm 10mm 8mm 6mm 6mm 5mm Dimensions: Total Length: 63mm, 61mm, 59mm, 48mm, 47mm, 43mm. Top Diameter: 20.5mm 16.5mm 12.4mm 10.4mm 8.3mm 6.3mm. Bottom Diameter: 10mm, 10mm, 8mm, 6mm, 6mm, 5mm. Package Included: 6 x Walnut Cutter