Coating: Titanium Aluminium Nitride (TiAlN) Each new carbide drill bit pack contains 5pcs of one specific size. These new drill bits are made of Tungsten Carbide. The over all length is 1.50". The shanks have a diameter of .1250 and all have identification rings on them. 0.865mm (.0340) 10.50mm Flute length $28.30 0.875mm (.0344) 10.50mm flute length $28.30 1.12mm (.0441) 10.50mm flute length $28.30 1.20mm (.0472) 10.50mm flute length $28.30 1.25mm (.0492) 10.50mm flute length $28.30 1.27mm (.0500) 10.50mm flute length $28.30 2.44mm (.0961) 10.50mm flute length $28.30 Call: 847-419-1267              Fax: 847-419-1241              Email: Drills2001@aol.com