{"product_id":"fuller-1-square-screwdriver-4-in","title":"Fuller #1 Square (Robertson) Screwdriver 4 in.","description":"\u003cstyle\u003e\n.pb-wrap{--pb-line:#e1e3e5;--pb-head:#f6f6f7;max-width:100%}\n.pb-wrap .pb-intro{margin-bottom:20px}\n.pb-acc{border:1px solid var(--pb-line);border-radius:8px;margin:0 0 8px;overflow:hidden}\n.pb-acc\u003esummary{cursor:pointer;padding:14px 16px;font-weight:600;line-height:1.35;\n list-style:none;display:flex;justify-content:space-between;align-items:center;gap:12px}\n.pb-acc\u003esummary::-webkit-details-marker{display:none}\n.pb-acc\u003esummary::marker{content:\"\"}\n.pb-acc\u003esummary::after{content:\"+\";font-size:22px;font-weight:400;line-height:1;flex:0 0 auto}\n.pb-acc[open]\u003esummary::after{content:\"\\2212\"}\n.pb-acc[open]\u003esummary{border-bottom:1px solid var(--pb-line);background:var(--pb-head)}\n.pb-acc\u003esummary:hover{background:var(--pb-head)}\n.pb-acc .pb-body{padding:16px}\n.pb-acc .pb-body\u003e:first-child{margin-top:0}\n.pb-acc .pb-body\u003e:last-child{margin-bottom:0}\n.pb-q{border:0;border-bottom:1px solid var(--pb-line);border-radius:0;margin:0}\n.pb-q:last-child{border-bottom:0}\n.pb-q\u003esummary{padding:12px 0;font-weight:600}\n.pb-q[open]\u003esummary{background:transparent;border-bottom:0}\n.pb-q\u003esummary:hover{background:transparent;text-decoration:underline}\n.pb-q .pb-body{padding:0 0 12px}\n.pb-scroll{overflow-x:auto;-webkit-overflow-scrolling:touch}\n.pb-table{width:100%;border-collapse:collapse;font-size:14px;min-width:380px}\n.pb-table th,.pb-table td{border:1px solid var(--pb-line);padding:8px 10px;\n text-align:left;vertical-align:top}\n.pb-table thead th{background:var(--pb-head)}\n.pb-table caption{caption-side:top;text-align:left;font-weight:600;padding:0 0 8px}\n.pb-note{font-size:13px;opacity:.75;margin-top:16px}\n.pb-wrap a{color:#3b82f6}\n.pb-wrap a:hover{color:#2563eb}\n\u003c\/style\u003e\u003cdiv class=\"pb-wrap\"\u003e\n\u003ch2\u003eFuller #1 Square (Robertson) Screwdriver 4 in.\u003c\/h2\u003e\n\u003cdiv class=\"pb-intro\"\u003e\n\u003cp\u003eThe Fuller #1 square (robertson) screwdriver has a 4 in. chrome vanadium steel blade, chrome plated against rust, fixed in a one-piece shatterproof handle. The #1 tip fits #4 to #6 square-drive screws used in trim, cabinet and light hardware work.\u003c\/p\u003e\n\u003cp\u003eThis is a single fixed-tip driver. It suits one screw size only, so match the tip to the recess: a #1 tip in the wrong size recess will cam out and strip the head.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdetails class=\"pb-acc\"\u003e\u003csummary\u003eFeatures and Common Uses\u003c\/summary\u003e\u003cdiv class=\"pb-body\"\u003e\n\u003cul\u003e\n\u003cli\u003eGenuine Robertson square tip, size #1\u003c\/li\u003e\n\u003cli\u003e4 in. round blade in chrome vanadium steel\u003c\/li\u003e\n\u003cli\u003eChrome plating resists rust\u003c\/li\u003e\n\u003cli\u003eExtra large fluted handle for grip and turning torque\u003c\/li\u003e\n\u003cli\u003eAcetate handle resists most greases and chemicals\u003c\/li\u003e\n\u003cli\u003eOne-piece shatterproof handle construction\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eCommonly used for:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eDriving and removing #1 square-drive screws by hand\u003c\/li\u003e\n\u003cli\u003eCabinet, trim, hardware and electrical cover work\u003c\/li\u003e\n\u003cli\u003eToolbox and service-van replacement driver\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\u003c\/details\u003e\u003cdetails class=\"pb-acc\"\u003e\u003csummary\u003eSpecifications\u003c\/summary\u003e\u003cdiv class=\"pb-body\"\u003e\n\u003cdiv class=\"pb-scroll\"\u003e\u003ctable class=\"pb-table\"\u003e\n\u003ccaption\u003eProduct Specifications\u003c\/caption\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eBrand\u003c\/th\u003e\n\u003ctd\u003eFuller Tool\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eSeries\u003c\/th\u003e\n\u003ctd\u003ePRO 300\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eModel\u003c\/th\u003e\n\u003ctd\u003e110-0315B\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eTip Type\u003c\/th\u003e\n\u003ctd\u003eGenuine Robertson square tip\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eTip Size\u003c\/th\u003e\n\u003ctd\u003e#1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eBlade Length\u003c\/th\u003e\n\u003ctd\u003e4 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eBlade Material\u003c\/th\u003e\n\u003ctd\u003eChrome vanadium steel, chrome plated\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eHandle\u003c\/th\u003e\n\u003ctd\u003eOne-piece fluted acetate\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eUPC\u003c\/th\u003e\n\u003ctd\u003e056822003156\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n\u003cp class=\"pb-note\"\u003eFuller PRO 300 series features and blade lengths are from the Fuller tool catalogue (model 110-0315B). Overall length and weight are not published. Source: \u003ca href=\"https:\/\/www.johnsonlevel.com\/files\/manuals\/Fuller%20Catalog_08.pdf\" target=\"_blank\" rel=\"noopener\"\u003eFuller Tool Catalogue (PDF)\u003c\/a\u003e.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/details\u003e\u003cdetails class=\"pb-acc\"\u003e\u003csummary\u003eFrequently Asked Questions\u003c\/summary\u003e\u003cdiv class=\"pb-body\"\u003e\n\u003cdetails class=\"pb-acc pb-q\"\u003e\u003csummary\u003eWhat is the blade made of?\u003c\/summary\u003e\u003cdiv class=\"pb-body\"\u003e\u003cp\u003eChrome vanadium steel with chrome plating to resist rust.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\n\u003cdetails class=\"pb-acc pb-q\"\u003e\u003csummary\u003eWill the handle hold up to oil and solvents?\u003c\/summary\u003e\u003cdiv class=\"pb-body\"\u003e\u003cp\u003eFuller states the acetate handle resists most greases and chemicals.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\n\u003cdetails class=\"pb-acc pb-q\"\u003e\u003csummary\u003eHow long is the blade?\u003c\/summary\u003e\u003cdiv class=\"pb-body\"\u003e\u003cp\u003e4 in. Fuller does not publish the overall length including the handle.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\n\u003c\/div\u003e\u003c\/details\u003e\n\u003c\/div\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Product\",\"@id\":\"https:\/\/griffbuildingsupplies.com\/products\/fuller-1-square-screwdriver-4-in#product\",\"name\":\"Fuller #1 Square (Robertson) Screwdriver 4 in.\",\"url\":\"https:\/\/griffbuildingsupplies.com\/products\/fuller-1-square-screwdriver-4-in\",\"brand\":{\"@type\":\"Brand\",\"name\":\"Fuller Tool\"},\"category\":\"Hardware \u003e Tools \u003e Screwdrivers\",\"description\":\"Fuller #1 square (Robertson) screwdriver with a 4 in. chrome vanadium blade and a large fluted acetate handle. 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