{"product_id":"5770-5-8-close-fit","title":"Robert Charles Plain Shank Counterbore M35-HSS-E 5% Cobalt - 5\/8 Cap Screw Size - 0.625 Pilot Size","description":"\u003cdiv\u003e\n\u003cp\u003eThe Robert Charles Plain Shank Counterbore is a precision tool designed for engineers and machinists who need clean, accurate counterbores in metalworking projects. Made from M35-HSS-E with 5% cobalt, it delivers exceptional heat resistance and wear life for dependable performance.\u003c\/p\u003e \u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eMaterial\u003c\/b\u003e: M35-HSS-E with 5% cobalt for enhanced hot hardness, wear resistance, and sustained cutting performance in challenging materials.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eShank Design\u003c\/b\u003e: Plain shank allows easy fitment in standard tool holders, promoting stable, reliable machining and quick setup.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eCap Screw Size\u003c\/b\u003e: 5\/8 in (0.625 in) cap screw size for compatible fixture and clamping applications.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003ePilot Size\u003c\/b\u003e: 0.625 in pilot ensures precise starting alignment and consistent counterboring depth.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eCounterbore Performance\u003c\/b\u003e: Geometrically engineered for accurate, clean counterbores with minimal burrs and smooth chip evacuation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eIdeal Applications\u003c\/b\u003e: Suited for precision engineering, automotive work, and general workshop use where durability and repeatable results matter.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eWith this counterbore, expect cleaner holes, improved alignment, and repeatable results across demanding jobs. The cobalt-infused high-speed steel edge maintains sharpness under heavy cutting, reducing rework and downtime, while the sturdy plain shank ensures dependable performance in everyday machining tasks.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Robert Charles","offers":[{"title":"Default Title","offer_id":43411728859214,"sku":"5770-5\/8-CLOSE FIT","price":142.2,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0560\/3747\/4382\/files\/Robert_Charles_Counterbores_064414c9-da70-4003-949a-efdaf311e774.png?v=1769685378","url":"https:\/\/www.protool-ltd.co.uk\/products\/5770-5-8-close-fit","provider":"Protool Precision Tools","version":"1.0","type":"link"}