{"product_id":"sunnen-ln1529a-retainer-block","title":"Sunnen LN1529A Retainer Block","description":"\u003cdiv\u003e\u003cp\u003eLN-1529A is Sunnen's replacement retainer block for the P20 family of honing mandrels. This precision part is used to secure the honing stone in the P20 mandrel assembly, restoring the clamping and alignment required for consistent bore finishing during Sunnen honing operations. Listed in Sunnen's replacement parts catalog as \"Replacement Retainer Block — For P20 Mandrels,\" the LN-1529A ensures proper seating of the stone during use and compatibility with Sunnen P20 mandrels. For contrast, Sunnen provides a separate retainer block for P28 mandrels (LN-1329A), illustrating that retainer blocks are mandrel-specific and part of standard maintenance or repair of Sunnen honing equipment. Use LN-1529A when servicing P20 mandrel setups to maintain original performance characteristics and to minimize stone slippage during honing cycles.\u003c\/p\u003e\u003c\/div\u003e","brand":"SUNNEN","offers":[{"title":"New","offer_id":46253421953258,"sku":null,"price":0.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0716\/8039\/3450\/files\/GTG-STOCK-010.png?v=1788727428","url":"https:\/\/gtghardware.com\/products\/sunnen-ln1529a-retainer-block","provider":"GTG Hardware","version":"1.0","type":"link"}