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The HERTEL H08700403 is a replacement screw designed for indexable cutting tools used in threading applications. It secures indexable inserts to the tool body, maintaining precise insert positioning during operation. This type of clamping hardware is a consumable component in CNC and manual lathe setups where indexable tooling is standard. Machinists and tooling technicians replace these screws when existing fasteners strip, wear, or are lost during insert changes. Weighing approximately 0.017 pounds, the H08700403 is a compact, single-piece fastener built to the tolerances required for repeatable insert seating.
This screw is intended for use with indexable inserts in threading tool holders. It is suited to machine shop environments — both production and job shop settings — where threading operations are performed on lathes or turning centers. The part is sold individually with a minimum order quantity of 5 units, making it practical to stock as a shop consumable alongside threading inserts and tool bodies.
Designed for use with indexable inserts in threading-style indexable tool holders. No specific compatible tool body model numbers were provided in the available product data. Verify fitment against your existing tool body manufacturer specifications before ordering.
Installation is performed by tooling technicians or machinists during insert indexing or replacement. Always power down and lock out the machine before accessing the tool holder. Use the correct driver or torx key specified by the tool body manufacturer to avoid cam-out and screw damage. Do not overtighten, as screw damage or insert cracking may result.
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