PACKAGE INCLUDE:5 pieces high quality end mill pack in a individual plastic box Amana Tool D 1/16 Inch Tapered Ball Nose Upcut Spiral Router Bit Zirco 4 Flute End Mills Yonico 2 Flute Ball Nose Spiral End Mill 1/8 In. Dia 1/4 In. Shank Carbide CNC Router Bits SPECS - US5500BNU | 1/2 Cut Diameter | 1/2 Shank | 1 Cut Length | 3 Overall Length | Up Cut | 3 Flute | Solid Carbide | Spiral Ball Nose CNC... APPLICATION: For cnc machining center , engraving machine, carbon steel, mould steel, inconel,stainless steel, titanium alloy ,plastic, etc; suitable for side milling, end milling, finish machining, etc. CNC Router bits 1/4inch Shank Carbide Ball Nose End Mill with Nano Blue Coating for Side Milling,End Milling,Finish Machining (1/4" x1/4" x2-1/2 SPECIFICATION: Ball nose, 4-flute, HRC45 with tialn coated , PREMIUM QUALITY.