20 Piece Tin Coated Double End Milling Machine Set The Jet 650210 is a 20 pc tin coated double end milling machine set. Included is a wooden case tin (titanium nitride) coating provides extreme hardness and heat resistance allowing tool to turn at higher speeds and feeds. Jet tools is committed to being the tool supplier you can depend on for the epitome of quality, innovation and service. Jet tools has worked hard to make this a reality that has been ongoing since they introduced their products more than 50 years ago. Jet 650210 Features: Set contains one piston type tool post and one each of 5 tool holders 2 and 4 fit double end set Wooden case 1 each of 3/16" to 3/4" by 16Ths Center cutting, ground Supplied in wooden case Tin (titanium nitride) coating provides extreme hardness and heat resistance allowing tool to turn at higher speeds and feeds Excellent for general purpose use as tin provides higher lubricity for freer chip flow, reduced buildup edge formations and catering Square end mill types are used for general milling applications Center cutting tools offer the user the greatest variety of applications Jet 650210 Specifications: Warranty: 90 days Product weight: 3 lbs