- Ironton Titanium Drill Bit Set - 327-Pc. Metal index box contains:29 titanium coated HSS fractional drill bits: 1/16in., 5/64in., 3/32in., 7/64in., 1/8in., 9/64in., 5/32in., 11/64in., 3/16in., 13/64in., 7/32in., 15/64in., 1/4in., 17/64in., 9/32in., 19/64in., 5/16in., 21/64in., 11/32in., 23/64in., 3/8in., 25/64in., 13/32in., 27/64in., 7/16in., 29/64in., 15/32in., 31/64in., 1/2in.60 titanium coated HSS number drill bits from #1 to #60.26 titanium coated HSS letter drill bits, from A- ZReplacement bit holder contains: 210 titanium coated 29 titanium coated HSS fractional drill bits: 1/16in., 5/64in., 3/32in., 7/64in., 1/8in., 9/64in., 5/32in., 11/64in., 3/16in., 13/64in., 7/32in., 15/64in., 1/4in., 17/64in., 9/32in., 19/64in., 5/16in., 21/64in., 11/32in., 23/64in., 3/8in., 25/64in., 13/32in., 27/64in., 7/16in., 29/64in., 15/32in., 31/64in., 1/2in. 60 titanium coated HSS number drill bits from #1 to #60. 26 titanium coated HSS letter drill bits, from A- Z Replacement bit holder contains: 210 titanium coated HSS replacement bits in popular sizes20pcs. 1/6in., 20pcs. 5/64in., 20pcs. 3/32in., 20pcs. 7/64in., 20pcs. 1/8in., 10pcs. 9/64in., 10pcs. 5/32in., 10pcs. 11/64in., 10pcs. 3/16in., 10pcs. 13/64in., 10pcs. 7/32in., 10pcs. 15/64in., 10pcs. 1/4in., 5pcs. 9/32in., 5pcs. 5/16in., 5pcs. 21/64in., 5pcs. 11/32in., 5pcs. 23/64in., 5pcs. 3/8in.Drill bit boxRemo