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The SECO 00072515 is a hex-drive assembly screw designed to secure indexable inserts in compatible boring bar toolholders. This hardware component is a precision fastener used to clamp and retain cutting inserts within indexable tooling systems. The hex drive accepts an H05-4 key or driver, providing controlled torque during insert changes and indexing operations. At 0.5 pounds, this is a small but critical piece of hardware that directly affects insert positioning and cutting performance. Licensed machinists, toolroom technicians, and CNC setup personnel are the primary installers.
This assembly screw is intended for use with indexable boring bar toolholders, specifically those matching the A780 toolholder style. It is suitable for insert-retention applications in precision boring operations across both production and job-shop environments. The screw is sold individually, making it a practical replacement option when existing fasteners are worn, stripped, or lost during insert changeover. The UNSPSC code 31161500 classifies this item within the fastener category for procurement and inventory systems.
Compatible with A780 toolholder style boring bars using indexable inserts. Requires an H05-4 hex key or driver for installation. Hardware compatibility is specified for insert-retention applications within this toolholder family.
Installation is performed by machinists or toolroom technicians during insert indexing or replacement procedures. Always power down and lock out the machine spindle before handling toolholder hardware. Use the specified H05-4 hex key to seat and tighten the screw — do not substitute with improperly sized drivers, as this can strip the drive recess or damage the screw seat. Follow the tooling manufacturer guidelines for proper insert clamping procedure.
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