Morse Tapper Shank Twist Drill With 28.75Mm Diameter Overall Length 296Mm, Fl Ute Length 175Mm Made From High Speed Steel (Hs). Technical Specifications: Drill Bit Supplied Will B E As Per Is 5103-1969(Reaffirmed 2008) And Should Last For 100 Fish Bolt Holes In 60 Kg 90 Uts Rail. [ Warr Anty Period: 30 Months After The Date Of Delivery ] ]