The Thinbit Mini-Bore series now includes a carbide bar with a minimum bore of 0.160". Inserts are available in two grades of submicron grain carbide with TiN, TiCN, TiAIN and diamond coatings.
Additionally, the company has expanded the line to include carbide trigon bars, which are said to yield improved surface finishes, deep cutting depths and long extension ratios. These bars are available in 3/16", 1/4" and 3/8" diameters for WCGT style 0.156", 0.187" and 0.250" IC inserts.
Editor PickCan Additive Manufacturing Increase Milling Feed Rates?
With PCD tooling, yes it can. The diamond cutting edges demand a large number flutes to realize their full effectiveness. Traditional methods for making cutter bodies limit the number of flutes, but 3D printing is delivering tools with higher flute density and other enhancements as well.