{"title":"Master Sets","description":"\u003cp\u003eThese are the professional-grade kits for setting up a new shop, outfitting a service truck, or for the mechanic who needs everything in one place. We've gathered all our heavy-duty master sets here, from massive 500+ piece combined fractional (SAE) and metric kits to dedicated pro sets.\u003c\/p\u003e\u003cp\u003eEvery set here is 100% Made in the USA and built to handle a lifetime of hard work. Sets that include insulated tools meet \u003ca href=\"\/resources\/building-codes-standards\/safety-compliance\/astm-f1505\"\u003eASTM F1505\u003c\/a\u003e requirements for live electrical work. Find the complete kit you need and get the job done.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eRelated standards:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003ca href=\"\/resources\/building-codes-standards\/safety-compliance\/osha-1926-301\"\u003eOSHA 1926.301\u003c\/a\u003e — Hand and power tool safety requirements on construction sites\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/resources\/building-codes-standards\/safety-compliance\/astm-f1505\"\u003eASTM F1505\u003c\/a\u003e — Insulated hand tool requirements for electrical work\u003c\/li\u003e\n\u003c\/ul\u003e","products":[{"product_id":"wright-tool-53-piece-fractional-apprentice-set-3-8-drive-tools-only","title":"Wright Tool 53 Piece Fractional Apprentice Set 3\/8\" Drive Tools Only","description":"\u003cp\u003eThis 53-piece fractional apprentice set from \u003ca href=\"\/companies\/wright-tool\"\u003eWright Tool\u003c\/a\u003e packs professional-grade 3\/8\" drive tools into a compact package. The set weighs 17.3 pounds and measures 18\" x 6.5\" x 4.5\", making it portable enough for job sites while covering the essential fractional sizes apprentices and journeymen need most. Each tool is forged and machined for precision fit and strength that handles daily shop and field work.\u003c\/p\u003e\n\n\u003cp\u003eEvery socket and accessory features patented Wright Drive technology that distributes contact over a larger surface area for better torque transfer and longer tool life. WrightGrip 2.0 technology helps grip worn and damaged fasteners that other tools can't handle. All tools meet ASME B107.100 standards and are manufactured in Van Wert, Ohio where Wright Tool has been making professional tools since 1914.\u003c\/p\u003e\n\n\u003cp\u003eThis apprentice set suits mechanics, maintenance techs, and anyone building their first professional tool collection. The fractional coverage handles most standard automotive, machinery, and equipment repair work. Set includes tools only - no storage case or chest.\u003c\/p\u003e\n\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDrive Size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3\/8\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePiece Count\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e53\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e17.3 lbs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDimensions\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e18\" x 6.5\" x 4.5\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSize Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eFractional\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eStandard\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eASME B107.100\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCountry of Origin\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eUSA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eUPC\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e076799001719\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e","brand":"Wright Tool","offers":[{"title":"Each","offer_id":46753098203313,"sku":"171","price":1117.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0529\/5269\/4961\/files\/0_2b001148-7fec-4ea9-a7da-9a7c8ca7bae1.webp?v=1775712181"},{"product_id":"wright-tool-425-piece-mega-fractional-master-set-1-4-3-8-1-2-3-4-drives-tools-only","title":"Wright Tool 425 Piece Mega Fractional Master Set 1\/4\" 3\/8\" 1\/2\" \u0026 3\/4\" Drives Tools Only","description":"\u003cp\u003eThis \u003ca href=\"\/companies\/wright-tool\"\u003eWright Tool\u003c\/a\u003e 425 Piece Mega Fractional Master Set 1\/4\", 3\/8\" 1\/2\" \u0026amp; 3\/4\" Drives, Tools Only\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eWright Tool Master sets designed for the professional.  From the Mega Master Set to smaller apprentice and basic service and metric sets.  Each set contains quality tools, carefully selected according to need and coverage.\u003c\/li\u003e\n\u003cli\u003eMaster sets are available with or without cabinets or Chests. Storage units are researched and selected specifically to handle the set purchased\u003c\/li\u003e\n\u003cli\u003ePatented Wright Drive® \u0026amp; WrightGrip® technology provides more tool-to-fastener contact, better fastener torque load and longer tool life.\u003c\/li\u003e\n\u003cli\u003eWright Tools are Forged and Machined for Best Fit and Unyielding Strength\u003c\/li\u003e\n\u003cli\u003eWright Tool Brand is made in the USA\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eMade in USA. ASME B107.100 compliant. Lifetime warranty.\u003c\/p\u003e","brand":"Wright Tool","offers":[{"title":"Each","offer_id":46753111670961,"sku":"102","price":10341.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0529\/5269\/4961\/files\/0_ef351f93-211f-407b-abf8-886a796ec12b.webp?v=1775715011"},{"product_id":"wright-tool-368-piece-fractional-master-maintenance-set-1-4-3-8-1-2-drives-tools-only","title":"Wright Tool 368 Piece Fractional Master Maintenance Set 1\/4\" 3\/8\" \u0026 1\/2\" Drives Tools Only","description":"\u003cp\u003eThis \u003ca href=\"\/companies\/wright-tool\"\u003eWright Tool\u003c\/a\u003e 368 Piece Fractional Master Maintenance Set 1\/4\", 3\/8\" \u0026amp; 1\/2\" Drives, Tools Only\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eWright Tool Master sets designed for the professional.  From the Mega Master Set to smaller apprentice and basic service and metric sets.  Each set contains quality tools, carefully selected according to need and coverage.\u003c\/li\u003e\n\u003cli\u003eMaster sets are available with or without cabinets or Chests. Storage units are researched and selected specifically to handle the set purchased\u003c\/li\u003e\n\u003cli\u003ePatented Wright Drive® \u0026amp; WrightGrip® technology provides more tool-to-fastener contact, better fastener torque load and longer tool life.\u003c\/li\u003e\n\u003cli\u003eWright Tools are Forged and Machined for Best Fit and Unyielding Strength\u003c\/li\u003e\n\u003cli\u003eWright Tool Brand is made in the USA\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eMade in USA. ASME B107.100 compliant. Lifetime warranty.\u003c\/p\u003e","brand":"Wright Tool","offers":[{"title":"Each","offer_id":46753111703729,"sku":"122","price":7957.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0529\/5269\/4961\/files\/0_6ebcdc80-4c97-45c9-9869-6b8a3120ccec.webp?v=1775715014"},{"product_id":"wright-tool-255-piece-fractional-intermediate-set-1-4-3-8-1-2-3-4-drives-tools-only","title":"Wright Tool 255 Piece Fractional Intermediate Set 1\/4\" 3\/8\" 1\/2\" \u0026 3\/4\" Drives Tools Only","description":"\u003cp\u003eThis \u003ca href=\"\/companies\/wright-tool\"\u003eWright Tool\u003c\/a\u003e 255 Piece Fractional Intermediate Set 1\/4\", 3\/8\", 1\/2\" \u0026amp; 3\/4\" Drives, Tools Only\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eWright Tool Master sets designed for the professional.  From the Mega Master Set to smaller apprentice and basic service and metric sets.  Each set contains quality tools, carefully selected according to need and coverage.\u003c\/li\u003e\n\u003cli\u003eMaster sets are available with or without cabinets or Chests. Storage units are researched and selected specifically to handle the set purchased\u003c\/li\u003e\n\u003cli\u003ePatented Wright Drive® \u0026amp; WrightGrip® technology provides more tool-to-fastener contact, better fastener torque load and longer tool life.\u003c\/li\u003e\n\u003cli\u003eWright Tools are Forged and Machined for Best Fit and Unyielding Strength\u003c\/li\u003e\n\u003cli\u003eWright Tool Brand is made in the USA\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eMade in USA. ASME B107.100 compliant. Lifetime warranty.\u003c\/p\u003e","brand":"Wright Tool","offers":[{"title":"Each","offer_id":46753111736497,"sku":"126","price":6825.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0529\/5269\/4961\/files\/0_bbde3ca8-f1f6-4498-a589-5e6bb8fd6a00.webp?v=1775715018"},{"product_id":"wright-tool-260-piece-metric-master-maintenance-set-1-4-3-8-1-2-drives-tools-only","title":"Wright Tool 260 Piece Metric Master Maintenance Set 1\/4\" 3\/8\" \u0026 1\/2\" Drives Tools Only","description":"\u003cp\u003eThis \u003ca href=\"\/companies\/wright-tool\"\u003eWright Tool\u003c\/a\u003e 260 Piece Metric Master Maintenance Set 1\/4\", 3\/8\" \u0026amp; 1\/2\" Drives, Tools Only\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eWright Tool Master sets designed for the professional.  From the Mega Master Set to smaller apprentice and basic service and metric sets.  Each set contains quality tools, carefully selected according to need and coverage.\u003c\/li\u003e\n\u003cli\u003eMaster sets are available with or without cabinets or Chests. Storage units are researched and selected specifically to handle the set purchased\u003c\/li\u003e\n\u003cli\u003ePatented Wright Drive® \u0026amp; WrightGrip® technology provides more tool-to-fastener contact, better fastener torque load and longer tool life.\u003c\/li\u003e\n\u003cli\u003eWright Tools are Forged and Machined for Best Fit and Unyielding Strength\u003c\/li\u003e\n\u003cli\u003eWright Tool Brand is made in the USA\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eMade in USA. ASME B107.100 compliant. Lifetime warranty.\u003c\/p\u003e","brand":"Wright Tool","offers":[{"title":"Each","offer_id":46753111769265,"sku":"191","price":5494.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0529\/5269\/4961\/files\/0_515cc781-3dbd-4552-8093-d8447de8ea91.webp?v=1775715021"},{"product_id":"wright-tool-218-piece-fractional-intermediate-set-1-4-3-8-1-2-drives-tools-only","title":"Wright Tool 218 Piece Fractional Intermediate Set 1\/4\" 3\/8\" \u0026 1\/2\" Drives Tools Only","description":"\u003cp\u003eThis \u003ca href=\"\/companies\/wright-tool\"\u003eWright Tool\u003c\/a\u003e 218 Piece Fractional Intermediate Set 1\/4\", 3\/8\" \u0026amp; 1\/2\" Drives, Tools Only\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eWright Tool Master sets designed for the professional.  From the Mega Master Set to smaller apprentice and basic service and metric sets.  Each set contains quality tools, carefully selected according to need and coverage.\u003c\/li\u003e\n\u003cli\u003eMaster sets are available with or without cabinets or Chests. Storage units are researched and selected specifically to handle the set purchased\u003c\/li\u003e\n\u003cli\u003ePatented Wright Drive® \u0026amp; WrightGrip® technology provides more tool-to-fastener contact, better fastener torque load and longer tool life.\u003c\/li\u003e\n\u003cli\u003eWright Tools are Forged and Machined for Best Fit and Unyielding Strength\u003c\/li\u003e\n\u003cli\u003eWright Tool Brand is made in the USA\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eMade in USA. ASME B107.100 compliant. Lifetime warranty.\u003c\/p\u003e","brand":"Wright Tool","offers":[{"title":"Each","offer_id":46753111834801,"sku":"131","price":4457.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0529\/5269\/4961\/files\/0_23dbb5ff-b48c-46da-8141-c8a75e5f2831.webp?v=1775715023"},{"product_id":"wright-tool-151-piece-metric-add-on-set-1-4-3-8-1-2-drives-tools-only","title":"Wright Tool 151 Piece Metric Add-on Set 1\/4\" 3\/8\" \u0026 1\/2\" Drives Tools Only","description":"\u003cp\u003eThis \u003ca href=\"\/companies\/wright-tool\"\u003eWright Tool\u003c\/a\u003e 151 Piece Metric Add-on Set 1\/4\", 3\/8\" \u0026amp; 1\/2\" Drives, Tools Only\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eWright Tool Master sets designed for the professional.  From the Mega Master Set to smaller apprentice and basic service and metric sets.  Each set contains quality tools, carefully selected according to need and coverage.\u003c\/li\u003e\n\u003cli\u003eMaster sets are available with or without cabinets or Chests. Storage units are researched and selected specifically to handle the set purchased\u003c\/li\u003e\n\u003cli\u003ePatented Wright Drive® \u0026amp; WrightGrip® technology provides more tool-to-fastener contact, better fastener torque load and longer tool life.\u003c\/li\u003e\n\u003cli\u003eWright Tools are Forged and Machined for Best Fit and Unyielding Strength\u003c\/li\u003e\n\u003cli\u003eWright Tool Brand is made in the USA\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eMade in USA. ASME B107.100 compliant. Lifetime warranty.\u003c\/p\u003e","brand":"Wright Tool","offers":[{"title":"Each","offer_id":46753111965873,"sku":"189","price":2394.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0529\/5269\/4961\/files\/0_b166babe-d271-4373-8e8d-907c67529b9b.webp?v=1775715035"},{"product_id":"wright-tool-97-piece-fractional-aircraft-mechanics-starter-set-1-4-3-8-1-2-drives-tools-only","title":"Wright Tool 97 Piece Fractional Aircraft Mechanics Starter Set 1\/4\" 3\/8\" \u0026 1\/2\" Drives Tools Only","description":"\u003cp\u003eThis \u003ca href=\"\/companies\/wright-tool\"\u003eWright Tool\u003c\/a\u003e 97 Piece Fractional Aircraft Mechanics Starter Set 1\/4\", 3\/8\" \u0026amp; 1\/2\" Drives, Tools Only\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eWright Tool Master sets designed for the professional.  From the Mega Master Set to smaller apprentice and basic service and metric sets.  Each set contains quality tools, carefully selected according to need and coverage.\u003c\/li\u003e\n\u003cli\u003eMaster sets are available with or without cabinets or Chests. Storage units are researched and selected specifically to handle the set purchased\u003c\/li\u003e\n\u003cli\u003ePatented Wright Drive® \u0026amp; WrightGrip® technology provides more tool-to-fastener contact, better fastener torque load and longer tool life.\u003c\/li\u003e\n\u003cli\u003eWright Tools are Forged and Machined for Best Fit and Unyielding Strength\u003c\/li\u003e\n\u003cli\u003eWright Tool Brand is made in the USA\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eMade in USA. ASME B107.100 compliant. Lifetime warranty.\u003c\/p\u003e","brand":"Wright Tool","offers":[{"title":"Each","offer_id":46753112064177,"sku":"186","price":1915.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0529\/5269\/4961\/files\/0_5dae4d17-a6bc-4615-b3a5-488ac6867c6f.webp?v=1775715044"}],"url":"https:\/\/shop.usmadesupply.com\/collections\/master-sets.oembed","provider":"US Made Supply","version":"1.0","type":"link"}