3M™ Diamond and CBN Wheels and Tools, 685DC TRIZ DIA PLSNG WHL 1A8, 8X7/16X1-1/4, 10 MIC, 1 ea/Case

3M has developed and integrated an innovative bonding technology into the 3M™ Trizact™ Diamond Polishing Wheel 685DC that represents a significant advancement in precision tool finishing. The proprietary "Trizact bond" formulation delivers outstanding surface quality results while preventing any distortion to the tool's profile or cutting edges, all while preserving a consistently polished appearance. This wheel was engineered specifically for polishing the flute passages of drills and endmills, bringing together the best characteristics of both resin-bonded diamond wheels and non-woven abrasive wheel technologies. This hybrid approach enables rapid and efficient polishing operations while retaining sufficient structural integrity to be precisely trued and dressed, and to faithfully follow even the most intricate tool geometries.

The 685DC wheel incorporates diamond particles that are evenly distributed throughout its entire structure. As the wheel gradually wears during use, new layers of sharp diamond particles are continuously revealed to the workpiece surface, ensuring sustained cutting performance. This self-renewing cutting action produces highly consistent and predictable results that translate into improved productivity, a significant reduction in rejected parts and rework requirements, and a measurable enhancement in the overall quality of finished components.

Although the 685DC can be utilized with handheld grinding equipment, it was primarily engineered for integration with CNC grinding machines, where it fits seamlessly into established manufacturing workflows and automated production sequences.

When round cutting tools are polished to a mirror-like surface quality, the result is a substantial improvement in tool durability and component quality. Superior surface finishes enable cutting tools to operate at lower temperatures and maintain their sharp edges longer during machining operations. When the flute areas of drills and endmills achieve a finer surface finish, chips generated or abraded from the workpiece surface can be evacuated more efficiently with significantly reduced friction and heat generation. This improved chip evacuation not only enhances the surface finish quality of the parts being machined but also extends the functional lifespan of the cutting tool itself.

The 3M™ Trizact™ Diamond Polishing Wheel 685DC functions as a core component within the comprehensive 3M™ Cutting Tool Grinding and Polishing System, which represents a thoughtfully assembled collection of machinery and consumable products optimized to deliver rapid, reliable, and fully automated tool grinding and polishing capabilities. Each element within this advanced system, including the 3M™ Truing and Dressing Machine and 3M™ Superabrasives, operates effectively as an independent unit or can be combined with other components to construct a fully integrated grinding and polishing system that readily adapts to most current production environments. 3M further extends its offering with an extensive selection of wheel profiles and specialized configurations that have been carefully designed for round tool grinding operations. The company's Superabrasive Wheel portfolio is manufactured in numerous material compositions suitable for both general-purpose grinding applications and specialized CNC machine operations, with availability in both cubic boron nitride (CBN) and diamond abrasive options.