{"product_id":"5770-7-8-1-32-over","title":"Robert Charles Plain Shank Counterbore M35-HSS-E 5% Cobalt - 7\/8 Cap Screw Size - 0.906 Pilot Size","description":"\u003cdiv\u003e\n\u003cp\u003eThe Robert Charles Plain Shank Counterbore is a precision metalworking tool built for engineers, machinists, and automotive shops that demand clean, repeatable counterboring results. Crafted from M35-HSS-E with 5% cobalt, it delivers enhanced heat resistance and wear life for durable performance under demanding cutting conditions.\u003c\/p\u003e \u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eMaterial \u0026amp; Grade\u003c\/b\u003e: M35-HSS-E with 5% cobalt for superior heat resistance and edge retention.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eShank Type\u003c\/b\u003e: Plain shank for easy fitment in standard tool holders and stable, reliable machining.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eSize \u0026amp; Pilot\u003c\/b\u003e: Cap screw size 7\/8 with a 0.906\" pilot size for precise starting alignment.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eCounterbore Geometry\u003c\/b\u003e: Designed for accurate and clean counterboring operations, delivering consistent results.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eTarget Applications\u003c\/b\u003e: Ideal for precision engineering, automotive manufacturing, and general workshop tasks requiring durable performance.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eWith this counterbore, you gain repeatable hole depths, clean shoulders, and reliable performance across a range of materials. The cobalt-infused HSS edge helps resist heat buildup, preserving sharpness during high-speed cuts and extending tool life. The plain shank enables straightforward mounting in standard tool-holding systems, reducing setup time and potential runout. This makes the Robert Charles Plain Shank Counterbore a practical choice for improving part quality and workflow efficiency in serious workshops.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Robert Charles","offers":[{"title":"Default Title","offer_id":43411729350734,"sku":"5770-7\/8-1\/32 OVER","price":255.96,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0560\/3747\/4382\/files\/Robert_Charles_Counterbores_e65fe545-175d-4ce9-bd40-81730c1bf610.png?v=1769685401","url":"https:\/\/www.protool-ltd.co.uk\/products\/5770-7-8-1-32-over","provider":"Protool Precision Tools","version":"1.0","type":"link"}