Seco 00071943 Lh Sclc Turning Toolholder 3/8 Shank

Product Description

The SECO 00071943 is a left-hand SCLC-style indexable turning toolholder designed for external turning operations on CNC and manual lathes. It features a neutral rake angle of 0 degrees and accepts CC..21.5. series inserts secured by a screw-lock clamping method. The shank measures 3/8 inches wide by 3/8 inches tall with an overall length of 2.5 inches. The toolholder body is constructed from steel, providing rigidity and dimensional stability under continuous cutting loads. It is typically installed by machinists and CNC operators working with universal workpiece materials across a broad range of turning applications.

This toolholder is suited for external turning on a variety of workpiece materials, including ferrous metals, non-ferrous alloys, stainless steel, heat-resistant superalloys, cast iron, and non-metallic materials, as indicated by material codes H, K, M, N, P, and S. The screw-lock insert retention system provides positive insert location and is well-suited for both roughing and finishing passes. The left-hand cutting direction makes it appropriate for applications requiring right-to-left tool travel on the workpiece.

Key Features

• Left-hand cutting direction for right-to-left tool travel applications
• SCLC toolholder style with screw-lock insert clamping for secure, repeatable insert seating
• Accepts CC..21.5. series inserts, including CCMT 21.51
• Neutral rake angle (0 degrees) for universal cutting geometry
• 3/8 inch by 3/8 inch steel shank with 2.5 inch overall length
• Compatible with universal workpiece materials across multiple material groups

Compatibility

Designed to accept CC..21.5. series inserts with a 1/4 inch inscribed circle, specifically compatible with CCMT 21.51 inserts. Suitable for universal workpiece materials spanning material codes H, K, M, N, P, and S.

Installation Notes

Installation is performed by machinists or CNC operators. Before changing inserts or mounting the toolholder, ensure the machine is powered down and locked out per facility lockout/tagout procedures. Seat the toolholder fully in the turret or tool post and verify clamping torque meets machine tool manufacturer specifications. Use the appropriate Torx or hex key for the screw-lock insert clamp and confirm insert seating before resuming cutting operations.