Kennametal 1848655 Indexable Shim Icsn Boring Bar

Product Description

The KENNAMETAL 1848655 is an ICSN-style shim designed for indexable boring bar tooling. It seats between the insert pocket and the cutting insert to provide a stable, repeatable seating surface that protects the tool body and maintains correct cutting geometry. The shim is machined for negative rake applications and is compatible with diamond-shaped inserts with a 0.5 inch inscribed circle. At 0.255 inches thick, it delivers consistent stack height across insert changes. Licensed machinists and CNC tool-room technicians install this component during tooling setup or insert seat repair on boring bar assemblies.

This shim is used in metal-cutting operations where boring bar tooling requires indexable insert support. It is suited for both production and job-shop environments running turning centers or horizontal boring mills. The ICSN geometry and negative rake orientation make it appropriate for heavy interrupted cuts and applications where insert seating rigidity is a priority. Sold individually with a minimum order quantity of 10 units per order.

Key Features

• ICSN shim style sized for 0.5 inch inscribed circle diamond inserts
• Negative rake geometry maintains correct cutting angle at the insert seat
• 0.255 inch thickness provides consistent stack height during insert indexing
• Designed for boring bar indexable tooling applications
• Protects the tool body pocket from direct insert contact and wear

Compatibility

Designed as an OEM-style replacement shim for indexable boring bar tool bodies accepting diamond-shaped inserts with a 0.5 inch inscribed circle and ICSN seating geometry.

Installation Notes

Installation is performed by a qualified machinist or tool-room technician during boring bar setup or insert pocket maintenance. Ensure the tool body is removed from the machine spindle and all clamping screws are fully backed out before seating or removing the shim. The shim seating surface and pocket should be cleaned of chips and debris before installation to ensure flat, even contact. Follow the tooling manufacturer's clamping torque sequence for the insert and shim clamp to avoid pocket damage.