Specification Brand : POEIRA BulletPoint : Dp18(PA14-1/2 Bore22 No. 1-8 Involute Gear Cutters) + (Tail Thread M12) 22mm R8 Shank Milling Arbor BulletPoint1 : Involute Gear Milling Cutters - High Speed Steel -14.5 Degree Pressure Angle - Form Relieved BulletPoint2 : Set 8 Pcs Dp16 :pressure angle: 14.5 degree BulletPoint3 : These cutters are designed to mill spur gears having a 14.5 degree pressure angle. They may be sharpened repeatedly without changing the original form BulletPoint4 : Involute gear cutters make it possible to machine gears on your CNC or manual mill; The gear cutter is made into the involute profile which transfers it's shape to your gear blank allowing it to run with other gears; The gear cutter needs to be matched to your gear specifications including diametral pitch or module, pressure angle and the number of teeth it will cut BulletPoint5 : The profile of all involute spur gears changes slightly as the tooth count changes and so the profile of the gear cutter changes as well Cutters are numbered from #1-#8 depending on how many teeth it will cut Color : default ExternallyAssignedProductIdentifier1 : 0713929932788 ExternallyAssignedProductIdentifier2 : 713929932788 IncludedComponents : Cutter ItemName : POEIRA HSS Set 8 Pcs Dp16 PA14-1/2 Bore22 8H No1-8 Involute Gear Cutters Diameter 55mm 14.5 Degree ItemPackageDimensions_Height : 6 centimeters ItemPackageDimensions_Length : 7 centimeters ItemPackageDimensions_Width : 7 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : involute-gear-cutters Manufacturer : POEIRA ModelName : Gearwellin42mgpahf ModelNumber : DP16 NumberOfItems : 1 PartNumber : DP01256 ProductDescription : Set 8 Pcs Dp16 PA14-1/2 Bore22 #1-8 Involute Gear Cutters pressure angle: 14.5 degree Outside Dia: 55mm Inner Bore: 22mm Material: HSS No1 :Z12~13; No2 :Z14~16; No3 :Z17~20; No4 :Z21~25; No5 :Z26~34; No6 :Z35~54; No7 :Z55~134; No8 :≥135 Package: 1 x Set 8 Pcs DP16 Involute Gear Cutters