Boring Head Provides Options to Ease Chip Removal

Big Kaiser Precision Tooling’s MW small-diameter, indexable boring head enables small-hole rough boring diameters ranging from 16 to 21 mm (0.630" to 0.827"), making it ideal for semi-finish boring operations of workpieces with die-cast holes. Built with a 20-mm-diameter straight shank, the product performs best when paired with a milling chuck at fixed bore depths ranging to 4×D, according to the company.

A spiral groove carved into the body promotes clean and quick chip removal with the help of coolant holes near the end of the groove. For blind-hole situations, an additional center-through coolant option aids in chip evacuation. Stop screws make it easy to switch between options.    

The two opposing die steel insert holders feature a serrated mounting system, providing a secure and rigid connection similar to the Kaiser 319 SW series. The insert holders are marked with a scale for coarse setting, and the radial adjustment screw allows for fine tuning thanks to its 0.008" pitch. Coated inserts are available for common materials like steels (including stainless), ferrous materials such as ductile and cast iron, and nonferrous materials like aluminum.