{"product_id":"grs-004-875-quick-change-tool-holder-1-8in-3-18mm-hole","title":"GRS 004-875  1\/8\" (3.18mm) Hole Quick Change \"QC\" Tool Holders-Sold by the Piece","description":"\u003cp\u003eThe GRS 004-875 Quick Change tool holder is designed specifically for \u003cstrong\u003e1\/8\" (3.18 mm) round shank gravers\u003c\/strong\u003e, offering a streamlined single hex screw clamping design that keeps smaller-diameter tools firmly secured. Sold individually, this QC holder is ideal for engravers who work primarily with 1\/8\" diameter gravers and want quick, reliable tool changes without the bulk of a two-screw setup.\u003c\/p\u003e\n\n\u003cp\u003eUnlike traditional GRS QC tool holders — which use two hex screws and feature a 0.136\" (3.45 mm) inside diameter hole — this holder requires only \u003cstrong\u003eone hex screw\u003c\/strong\u003e to lock 1\/8\" shank tools securely in place. The shaft diameter of 0.250\" (6.32 mm) is consistent across all GRS QC tool holders, ensuring full compatibility with the GRS quick change handle system.\u003c\/p\u003e\n\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eDesigned for \u003cstrong\u003e1\/8\" (3.18 mm) round shank gravers\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eSingle hex screw clamping — optimized for secure hold on 1\/8\" diameter tools\u003c\/li\u003e\n\u003cli\u003e0.250\" (6.32 mm) diameter shaft — standard across all GRS QC tool holders\u003c\/li\u003e\n\u003cli\u003eCompatible with GRS quick change handle 104.805 and all GRS QC handpieces\u003c\/li\u003e\n\u003cli\u003eWorks with the QC Magnum, QC Monarch, and QC 901 handpieces\u003c\/li\u003e\n\u003cli\u003eSold by the piece\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003ePart Number\u003c\/th\u003e\n\u003ctd\u003e004-875 (GRS 104.875)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eHole Diameter\u003c\/th\u003e\n\u003ctd\u003e1\/8\" (3.18 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eShaft Diameter\u003c\/th\u003e\n\u003ctd\u003e0.250\" (6.32 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eHex Screws\u003c\/th\u003e\n\u003ctd\u003e1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eLength\u003c\/th\u003e\n\u003ctd\u003e1\" standard length\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSold As\u003c\/th\u003e\n\u003ctd\u003eSold by the piece\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eNotes\u003c\/h3\u003e\n\u003cp\u003eGRS offers a full range of QC tool holders to suit different graver shank sizes and application needs. For reference, the related holders in the GRS QC lineup include:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e104.806\u003c\/strong\u003e – Traditional 2 hex screw, 1\" standard length, 0.136\" (3.45 mm) hole\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e104.855\u003c\/strong\u003e – One hex screw, 3\/32\" (2.35 mm) hole, 1\" standard length\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e104.875\u003c\/strong\u003e – One hex screw, 1\/8\" (3.18 mm) hole, 1\" standard length \u003cem\u003e(this item)\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e104.872\u003c\/strong\u003e – One hex screw, 1.8 mm hole, 1\" standard length\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e104.870\u003c\/strong\u003e – Traditional 2 hex screw, 1\" standard length, 0.136\" (3.45 mm) hole, soft hit (nylon ends)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e104.803SS\u003c\/strong\u003e – Stainless steel, traditional 2 hex screw, 1\" standard length, 0.136\" (3.45 mm) hole\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e111.541\u003c\/strong\u003e – Bronze, one hex screw, 1\/8\" (3.18 mm) hole, 1\" standard length\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e104.856\u003c\/strong\u003e – Extra long (1\/2\" longer than standard), traditional 2 hex screw, 0.136\" (3.45 mm) hole\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e104.860\u003c\/strong\u003e – Blank, traditional 2 hex screw, 1\" standard length, center drilled hole\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Glendo GRS","offers":[{"title":"Default Title","offer_id":43579901608150,"sku":"104.875","price":9.3,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0609\/9832\/0342\/files\/grs-004-875-18-3-18mm-hole-quick-change-qc-tool-holders-sold-by-the-piece-otto-frei.jpg?v=1719958393","url":"https:\/\/www.ottofrei.com\/products\/grs-004-875-quick-change-tool-holder-1-8in-3-18mm-hole","provider":"Otto Frei","version":"1.0","type":"link"}