What project are you undertaking?What are you cutting? Is it hard or soft wood? Is it stainless steel, fiberglass, MDF, acrylic, or aluminum?In case you’re new to CNC routing and you want a multi-purpose bit, go for two-flute spiral bits since they cut a wide range of materials, including plastics, aluminum, foam, and wood. Genmitsu MC40A 40pcs End Mills CNC Router Bits 10 x Spiral Flat Nose End Mills, 2-Flute10 x Spiral Ball Nose End Mills, 2-Flute10 x Nano Blue Coating End Mills (different cutting diameter: 0.8mm, 1.0mm, 1.2mm, 1.4mm, 1.6mm, 1.8mm, 2.0mm, 2.2mm, 2.5mm, 3.0mm)10 x Titanium Coating End Mills (different cutting diameter: 0.8mm, 1.0mm, 1.2mm, 1.4mm, 1.6mm, 1.8mm, 2.0mm, 2.2mm, 2.5mm, 3.0mm) Material: Tungsten Carbide Steel Alloy Surface : Nano Blue Coating/Titanium Coating Shank Diameter: 1/8'' (3.175mm) Cutting Diameter: 0.8-3mm, 3.175mmc Cutting Length: 17mm Overall Length: 38mm Cost-Effective Set The MC40A end mill set includes 4 type bits: spiral flat nose bits, ball nose bits, Nano Blue Coat end mills and Titanium Coat end mils. It's a very cost-effective set to meet your all needs in engraving work. Wide Application Widely used in various materials including plastics, aluminum, circuit board, wood, as well as other precision parts processing. They are compatible with most desktop CNC machines, such as the Genmitsu 3018 Series, as well as other industrial CNC machines. High Quality Its Nano Blue Coating /Titanium Coating with high hardness and heat resistance enables the tool's cutting edge to retain crucial sharpness and lubricity. This provides longevity and produces cutting results of the highest quality. EM03A 70V30 EM10A MC50A MC30A MC30B Add to Cart Add to Cart Buying Options Add to Cart Buying Options Buying Options Customer Reviews 4.6 out of 5 stars 41 4.4 out of 5 stars 580 4.5 out of 5 stars 222 4.4 out of 5 stars 161 4.5 out of 5 stars 11 4.5 out of 5 stars 5 Price $15.99$15.99 $19.99$19.99 — no data $59.99$59.99 — no data — no data Type Tapered Ball Nose & V-Shape End Mill V-Shape End Mill Tapered Ball Nose & Single Flute Spiral End Mill, Flat Bottom Carbide Engraving Bit 2-Flute Flat/Ball Nose End Mill, Corn-shaped End Mill, PCB Drill Bit, V-Groove Router Bit, 2-Flute Straight Router Bit O Flute & 2-Flute Ball Nose, Corn-shaped End Mill Corn-shaped & 2-Flute Flat Nose End Mill, V-Groove Engraving Bit Surface Nano Blue Coating Nano Blue Coating Nano Blue Coating Nano Blue Coating & Titanium Coating Nano Blue Coating & Titanium Coating Nano Blue Coating & Titanium Coating Shank Diameter 1/8''(3.175mm) 1/8''(3.175mm) 1/8''(3.175mm) 1/8''(3.175mm) 1/8''(3.175mm) 1/8''(3.175mm) Cutting Diameter/Radius R0.1mm, D0.2mm, D0.25mm / / 1-3.175mm, 1.1-2.0mm 0.8mm, 3.175mm 0.1mm, 3.175mm Quantity 3 10 10 50 30 30 TB04A PD30A RB03A VG05A RB10A ER11 Add to Cart Add to Cart Add to Cart Add to Cart Buying Options Add to Cart Customer Reviews 4.5 out of 5 stars 222 4.3 out of 5 stars 623 4.4 out of 5 stars 133 4.0 out of 5 stars 232 — 4.6 out of 5 stars 422 Price $29.99$29.99 $17.09$17.09 $35.99$35.99 $21.59$21.59 — no data $36.99$36.99 Type 2-Flute Tapered Ball Nose End Mill PCB Drill Bit 3-Flute Spoilboard Surfacing Router Bit V-Groove Router Bit HSS Router Bit ER11 Collet Surface Nano Blue Coating / / / Titanium Coating / Shank Diameter 1/8''(3.175mm) 1/8''(3.175mm) 1/4" (6.35mm) 1/4" (6.35mm) 1/8''(3.175mm) 1.0mm-7.0mm Cutting Diameter/Radius R0.25-1.0 0.1-3.0mm 24mm 16-32mm 3.175-9.5mm / Quantity 4 30 3 5 10 15