Foredom Inverted Cone 1/4 Dia X 1/4 Lg

Description:

Inverted Cone (1/4" Diameter x 1/4" Length) is a high-capacity dental laboratory bur designed for creating deep undercuts, structural recesses, and mechanical retention features in a variety of restorative materials. Its inverted tapered design allows controlled removal of material in a widened profile, enabling technicians to establish strong mechanical locking areas commonly required in denture fabrication, bar-supported restorations, and acrylic appliance modification. Due to its larger diameter and increased length, this bur is ideal for applications requiring more substantial material reduction. It is frequently used for shaping metal frameworks, forming large retention recesses for acrylic bonding, adjusting implant bar components, preparing undercut spaces for attachments, and modifying orthodontic appliances. The bur�s strong inverted geometry supports the creation of robust undercuts without compromising alignment or structural integrity. Its extended 1/4" length provides the cutting depth needed for deeper recess formation while still maintaining excellent operational control. Technicians can confidently remove bulk material from chrome-cobalt frameworks, stainless steel elements, or acrylic bases with minimal vibration and consistent cutting action. The bur also creates uniform internal walls, contributing to improved bonding strength and secure mechanical retention. Constructed from durable tungsten carbide or industrial-grade abrasive materials, the Inverted Cone 1/4" x 1/4" maintains long-term sharpness and withstands heavy laboratory workloads. It is a dependable tool for large-scale contouring and retention preparation, ensuring restorations achieve both mechanical reliability and functional durability.