Iscar 3606512 Lh Mcln Indexable Turning Toolholder

Product Description

The ISCAR 3606512 is a left-hand MCLN-style indexable turning toolholder from the Isoturn series, designed for negative-rake external turning operations on CNC and manual lathes. It features a 1 inch by 1 inch square shank with an overall length of 6 inches and a rake angle of -6 degrees. The toolholder uses a clamp-and-pin insert holding method and is compatible with CN..43.. style inserts, including the CNMG431-GN, with an inscribed circle of 0.5 inches. It is installed and serviced by machinists and CNC tooling technicians in production and job-shop environments.

The 3606512 is suited for left-hand turning applications where the tool feeds from chuck toward tailstock or in specific facing and profiling operations requiring a left-hand cutting direction. The 5-degree lead angle and negative rake geometry support interrupted cuts and harder workpiece materials where edge strength is critical. This toolholder fits standard MCLN toolholder pockets and is a direct fit for setups requiring CN..43..-compatible insert geometry. It conforms to ISO 13399 tooling data standards, which simplifies integration into CAM and tool-management software.

Key Features

• Left-hand cutting direction with MCLN toolholder style for negative-rake turning
• Rake angle of -6 degrees for improved edge strength on demanding materials
• Clamp and pin insert holding method for secure insert retention under high cutting loads
• Compatible with CN..43.. inserts including CNMG431-GN, inscribed circle 0.5 inches
• 1 inch by 1 inch square shank, 6 inches overall length, 5-degree lead angle
• Conforms to ISO 13399 tooling data standards

Compatibility

Accepts CN..43.. series inserts, including the CNMG431-GN. Insert inscribed circle is 0.5 inches. Designed as an OEM-style left-hand turning toolholder for CNC and manual lathe setups requiring a 1 inch by 1 inch shank pocket.

Installation Notes

Installation is performed by qualified machinists or CNC tooling technicians. Shut down spindle rotation and lock out the machine before changing toolholders or inserts. Ensure the shank pocket and clamping surfaces are clean and free of chips before seating the holder. Follow machine-tool manufacturer torque guidelines for toolholder clamping bolts — do not overtighten, as this can distort the shank or damage the insert seat.