{"product_id":"3-8-21-threaded-shank-stop-countersink-1-4-28-threaded-shank-hss_tsc3-8-21","title":"3\/8\"-#21 Threaded Shank Stop Countersink | HSS | 1\/4\"-28 Threaded Shank | TSC3\/8-21","description":"\u003cdiv\u003e\n\u003cp\u003eIndustrial precision tooling for countersinking in metalworking and assembly operations. Dual threaded shank configurations and High-Speed Steel construction deliver repeatable depth control and wear resistance in demanding environments.\u003c\/p\u003e \u003ch2\u003eSpecs\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cb\u003eMaterial grade:\u003c\/b\u003e HSS\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eThread type:\u003c\/b\u003e 3\/8\"-#21 Threaded Shank; 1\/4\"-28 Threaded Shank\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eFeatures\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cb\u003eStop depth control:\u003c\/b\u003e Stop countersink feature provides repeatable countersink depth to prevent over-penetration during machining.\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eShank options:\u003c\/b\u003e Dual threaded shank configurations: 3\/8\"-#21 Threaded Shank; 1\/4\"-28 Threaded Shank for compatibility with common toolholders and spindle interfaces.\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eMaterial:\u003c\/b\u003e High-Speed Steel (HSS) for thermal resistance and cutting-edge durability in metalworking operations.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Drill America","offers":[{"title":"Default Title","offer_id":53412457480471,"sku":"TSC3\/8-21","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\/3-8-21-threaded-shank-stop-countersink-1-4-28-threaded-shank-hss_tsc3-8-21","provider":"Mutual Screw \u0026 Supply","version":"1.0","type":"link"}