{"product_id":"1-2-21-threaded-shank-stop-countersink-1-4-28-threaded-shank-hss_tsc1-2-21","title":"1\/2\"-#21 Threaded Shank Stop Countersink | HSS | 1\/4\"-28 Threaded Shank | TSC1\/2-21","description":"\u003cdiv\u003e\n\u003cp\u003eIndustrial stop countersinks with threaded shanks provide precise depth control for metalworking operations. This product supports secure mounting and repeatable countersink depth through dedicated thread forms.\u003c\/p\u003e \u003ch2\u003eSpecs\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eMaterial grade:\u003c\/strong\u003e HSS\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThread type:\u003c\/strong\u003e #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\u003cstrong\u003eDepth stop functionality:\u003c\/strong\u003e Ensures repeatable countersink depth for consistent fastener seating and reduced rework.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThreaded shank compatibility:\u003c\/strong\u003e Supports standard thread forms including #21 and 1\/4-28 for secure mounting with compatible tool holders and adapters.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e High-Speed Steel (HSS) for wear resistance and heat tolerance in metalworking operations.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Designed for stop countersink operations on ferrous and nonferrous metals in manufacturing and machining environments.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Drill America","offers":[{"title":"Default Title","offer_id":53412455612695,"sku":"TSC1\/2-21","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\/1-2-21-threaded-shank-stop-countersink-1-4-28-threaded-shank-hss_tsc1-2-21","provider":"Mutual Screw \u0026 Supply","version":"1.0","type":"link"}