TTP Hard Drills
(203) 621-0818
17 Dubois Street, Darien, Connecticut, 06820
About us
Cobalt drill bits - TTP Hard Drillsdrilling easily harder steels and metals where a normal HSS drill bit can not come close. Designed to drill through the toughest and hardest of abrasive materials they are ideal to use for drilling into stainless steel, titanium, cast iron, spot welds, leaf springs even Hardox - Our cobalt drill bits are available in the USA and are sold as singles, packs of 10, or in drill bit sets in Imperial or Metric sizes.