{"product_id":"7-16-21-threaded-shank-stop-countersink-1-4-28-threaded-shank-hss_tsc7-16-21","title":"7\/16\"-#21 Threaded Shank Stop Countersink | HSS | 1\/4\"-28 Threaded Shank | TSC7\/16-21","description":"\u003cdiv\u003e\n\u003cp\u003eIndustrial stop countersinks with threaded shanks enable precision countersinking and chamfering for metalworking and assembly. These High Speed Steel tools provide secure depth control and repeatable results across production runs and shop floor operations.\u003c\/p\u003e \u003ch2\u003eSpecs\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eMaterial grade:\u003c\/b\u003e HSS\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eThread type:\u003c\/b\u003e 7\/16 inch-#21 threaded shank; 1\/4 inch-28 threaded shank\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eFeatures\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eDepth control:\u003c\/b\u003e Depth stop maintains consistent countersink depth to ensure uniform chamfers and reduce rework in metal fabrication.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eThreaded shank compatibility:\u003c\/b\u003e Two standard thread configurations (7\/16 inch-#21 and 1\/4 inch-28) support direct mounting in compatible tool holders, jigs, and drill presses.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eMaterial integrity:\u003c\/b\u003e High Speed Steel construction provides wear resistance and heat tolerance during high-speed drilling and countersinking operations.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eApplication scope:\u003c\/b\u003e Suitable for drilling and countersinking metal components in automotive, aerospace, and general fabrication contexts where precise hole preparation is required.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Drill America","offers":[{"title":"Default Title","offer_id":53412458889495,"sku":"TSC7\/16-21","price":9.42,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0836\/1125\/5063\/files\/7.jpg?v=1779454687","url":"https:\/\/mutualscrew.com\/products\/7-16-21-threaded-shank-stop-countersink-1-4-28-threaded-shank-hss_tsc7-16-21","provider":"Mutual Screw \u0026 Supply","version":"1.0","type":"link"}