3M™ Diamond and CBN Wheels and Tools, 685DC TRIZ DIA PLSNG WHL 1A8, 4X3/16X1-1/4, 10 MIC, 1 ea/Case

3M has developed an innovative bonding technology integrated into the 3M™ Trizact™ Diamond Polishing Wheel 685DC that represents a significant advancement in precision tool finishing. This specialized "Trizact bond" delivers exceptional surface finishing capabilities while preventing any distortion to tool profiles or cutting edges, ensuring that polished surfaces maintain their integrity and functionality. The wheel was engineered specifically for polishing the intricate flute geometries found in drill bits and endmills, seamlessly merging the superior performance characteristics of resin-bond diamond abrasives with the practical benefits of non-woven abrasive wheel construction, resulting in a tool that achieves efficient material removal without compromising structural rigidity or the ability to maintain complex geometric tolerances.

The 3M™ Trizact™ Diamond Polishing Wheel 685DC incorporates diamond particles that are uniformly distributed throughout the entire wheel structure. As the wheel undergoes normal wear during operation, a continuous supply of fresh, sharp diamond crystals becomes exposed at the working surface, maintaining cutting performance throughout the wheel's service life. This self-replenishing action ensures that users experience consistent and highly predictable polishing results, which directly translates to improved production efficiency, a measurable reduction in part rejection rates, decreased rework requirements, and enhanced overall part quality.

While the 685DC wheel can be utilized with portable grinding equipment, it was specifically developed for integration with computer numerical control (CNC) grinding machines, enabling seamless incorporation into automated manufacturing workflows and existing production environments.

When round cutting tools are polished to achieve a mirror-like finish, the resulting improvements in surface quality can substantially extend tool longevity and enhance machining results. Superior finish quality allows cutting tools to operate at lower temperatures while maintaining sharper cutting edges throughout their service life. The exceptionally smooth finish produced in the flute passages of drills and endmills facilitates superior chip evacuation, reducing frictional forces and heat generation during the cutting process. This improved chip flow mechanism not only enhances the surface finish quality of the workpiece being machined but also contributes significantly to extended tool life.

The 3M™ Trizact™ Diamond Polishing Wheel 685DC functions as a core component within the comprehensive 3M™ Cutting Tool Grinding and Polishing System, which comprises a thoughtfully assembled collection of grinding equipment and consumable materials engineered to deliver rapid, reliable, and fully automated tool grinding and polishing capabilities. Each individual component within this integrated system, including the 3M™ Truing and Dressing Machine and various 3M™ Superabrasive products, provides standalone functionality while also working synergistically with other system components to create a fully coordinated grinding and polishing solution that adapts effortlessly to most conventional production environments. Furthermore, 3M provides an extensive selection of wheel profiles and structural designs specifically optimized for round tool grinding applications, with superabrasive wheels available in numerous construction variations designed for both general-purpose grinding and specialized CNC machine applications, offered with either cubic boron nitride (CBN) or diamond abrasive materials.