Bob Dolph’s 2013 Top Technology Picks

Top30Dolph lhdottie

This product comes from the well-known company L.H. Dottie. It is the Tip-Bits product line. They are step drill bits with a replaceable tip. This is a great alternative rather than throwing away a good bit that just won’t start a hole anymore. The first few drill steps can now be replaced thereby making the drill bit start like new again. Step bit performance is said to remain identical to that of nonreplaceable drill tip bits. The products are constructed of M2 high speed steel, coated with titanium and cobalt. Tri-cut tip cuts smoother, faster and cooler. This is a real money-saver with the base bits lasting three to four times longer at a fraction of the cost.