6pcs silver Included: 6Pcs/Set * HSS Routing Router Grinding Bits Burr Dimensions (head diameter x head length x shank diameter): The Biggest Column One: 8 x 10 x 3.17mm/0.31" x 0.39" x 0.12". The Bigger Cone One: 6 x 11 x 3.17mm/0.24" x 0.43" x 0.12". The Medium Column One: 3 x 7 x 3.17mm/0.12" x 0.28" x 0.12". The Small Cone : 3 x 7 x 3.17mm/0.12" x 0.28" x 0.12". The Smallest Column One:3 x 2.5 x 3.17mm/0.12" x 0.10" x 0.12". The Ball One: 3 x 3 x 3.17mm/0.12" x 0.12" x 0.12". 10pcs silver/gold Included: 10PCS-speed steel and wood cutter Size: 10pcs 3mm shank DIY Supplies: Woodworking Model Number: 10pcs Burr Bit Grinder Color: Silver, Gold Type: Other Type 1: Titanium coating, anti-oxidation, more wearable. Type 2: Engraving Tool Type 3: Woodworking End Milling Cutter Type 4: Fraise Carbure Type 5: HSS Rotary Files Set Type 6: Grinding Rotary Burr File Type 7: 10pcs Burr Bit Grinder Type 8: Rotary Burr Rotary Rasp Type 9: dremel Rotary Tool Type 10: Micro Repair Tools Material: HSS Specifications: For the rotary tool set burrs higher quality 10 installed Shank: 3mm 20pcs silver Included: 20 HSS Ti Routing Router Grinding Bit Material: HSS Ti Specifications: For the rotary tool set burrs higher quality 10 installed Shank: About 3mm Color:Silver,Gold Uses: 1.Micro-drilling or cutting portion provided in various forms 2.Length of the material efficiently handle around 39mm 3.10PC set of Grinding Routing Bits Including Mandrel. 4.All with fitted 3mm diameter mandrels will fit most rotary tools including Dremel. 5.These 10 HSS Routing Bits are perfect for all sorts off jobs like Model making and the like. 6.Great for craft, airfix modelling, home, repairs etc 7.Titanium coating, anti-oxidation, more wearable. 50pcs gold Diameter and total lenght: 10pcs x 1mm twist bit 10pcs x 1.5mm twist bit 10pcs x 2mm twist bit 10pcs x 2.5mm twist bit 10pcs x 3mm twist bit Total Quantity: 50pcs Features: Brand new and high quality. Design: Straight Shank. Material: HSS Titanium Coated. Straight shank design is more suitable for many electric drills and drilling machines(here is not included). Sharp and twisted flute will make the drilling be more easy and effortless. Suitable for wood, aluminum, plastic or other materials. Ideal For DIY, Home And General Building/Engineering Using.