Because of the popularity of BIG-PLUS, many tooling companies, without a proper license, offer what they call dual-contact tooling. But not all dual-contact is the same. Let’s tackle a few of the most common misconceptions.
BIG-PLUS tool holders are supported on the flange face and taper providing excellent rigidity. It is interchangeable with existing machines and tool holders.
With the addition of the Fullcut Radius Mill and the Ball End Mill, the Fullcut Mill Contact Grip series now features four connection sizes and seven cutter types.
Dyna Contact is a precise gage used to check the geometric accuracy of a machine spindle taper by visually comparing the contact of the gage to the spindle.
If you purchase cheap dual contact tooling after being told by a supplier that it will work just as good as the original you risk unsatisfactory performance.
While the latest machine tool technology may go a long way towards eliminating vibration and chatter, adding a new one may not be realistic. Luckily, there are less disruptive options that can make positive impacts on vibration without breaking the bank.
Chattering and deflection have always been the bane of machinists’ existence, so much so that the sight of a long and slender tool holder will immediately cause goosebumps. If you understand why a long tool holder behaves the way it does, you’ll know that there are ways to fight back against this bending.