Seco 74016085 Indexable Turning Shim CCMM12 Diamond Insert

Product Description

The SECO 74016085 is a replacement shim designed for indexable turning toolholders. It seats beneath the cutting insert to maintain precise insert positioning and protect the toolholder pocket from wear and impact loading. This shim follows the CCMM12 shim style and is engineered for negative-rake insert configurations using diamond-shaped inserts with a 0.5 inch inscribed circle. At 0.1250 inches thick, it restores correct insert seating height after pocket wear or insert changes. Machinists and CNC turning specialists install this component during routine insert changes or toolholder refurbishment on turning centers and engine lathes.

This shim is suited for production turning applications where consistent insert height and repeatable tool offset values are critical. It is compatible with CCMM12-series toolholder pockets that accept diamond-shaped negative-rake inserts. Shops running high-volume turning operations benefit from keeping spare shims on hand to minimize toolholder downtime during insert indexing cycles.

Key Features

• CCMM12 shim style for direct fitment in compatible CCMM12 toolholder pockets
• Designed for diamond-shaped inserts with 0.5 inch inscribed circle
• Negative-rake geometry compatible with negative insert configurations
• 0.1250 inch thickness maintains precise insert seating height
• Protects toolholder pocket from direct cutting load and insert-edge contact
• Industry standard number 16085 for cross-reference sourcing

Compatibility

Designed for use in CCMM12-series indexable turning toolholder pockets accepting diamond-shaped negative-rake inserts with a 0.5 inch inscribed circle.

Installation Notes

Installation is performed by qualified machinists or toolroom technicians during insert changes or toolholder servicing. Ensure the machine spindle is powered down and all motion has stopped before accessing the toolholder pocket. Seat the shim flat in the pocket before placing the insert, and confirm the clamp screw torque follows the toolholder manufacturer specifications. Inspect the pocket and shim seating surface for chips or debris before assembly to maintain insert stability and dimensional repeatability.