Hertel 8849726 Ceramic Turning Insert Round Tin Coated

Product Description

The HERTEL 8849726 is a ceramic turning insert designed for high-speed metal cutting operations on CNC lathes and turning centers. It features a round insert shape (RCGX style) with a TiN coating applied via PVD process, delivering improved surface hardness and wear resistance on the cutting edge. The insert has a 1/4 inch (0.25 inch) inscribed circle and a thickness of 0.3125 inches. Its neutral hand orientation suits a range of turning applications. This insert is installed by machinists and tooling technicians working with precision metal removal on production or job-shop turning equipment.

This insert is suited for finish and semi-finish turning of ferrous and non-ferrous workpieces where ceramic cutting materials provide a speed or tool-life advantage over carbide. The RCGX style with clamp holding method fits compatible toolholders using a top-clamp seating arrangement. The neutral hand designation allows use in both left- and right-hand toolholder setups. Typical applications include high-speed turning of hardened steels and cast iron on horizontal or vertical turning centers in industrial manufacturing environments.

Key Features

• Ceramic insert material with TiN coating via PVD process for enhanced edge wear resistance
• Round insert shape (shape code R) provides multiple usable cutting edges per insert
• Neutral hand orientation for use in left- or right-hand toolholders
• 7-degree relief angle (clearance code C) reduces flank wear in continuous turning passes
• Clamp holding method (RCGX style) for secure seating in compatible toolholders
• Chip breaker designation X for controlled chip formation during cutting

Compatibility

Designed for use in compatible RCGX-style clamp-type toolholders that accept a round insert with a 1/4 inch inscribed circle and 0.3125 inch insert thickness. Verify toolholder pocket geometry and insert size code 102 compatibility before installation.

Installation Notes

Installation should be performed by a qualified machinist or tooling technician. Power down and lock out the machine spindle before seating or replacing inserts. Use the appropriate torque wrench or clamp screw driver specified by the toolholder manufacturer when securing the clamp — do not overtighten by hand. Inspect the toolholder pocket for chips or debris before seating the insert to ensure proper contact and edge alignment.