{"product_id":"5770-5-8-1-32-over","title":"Robert Charles Plain Shank Counterbore M35-HSS-E 5% Cobalt - 5\/8 Cap Screw Size - 0.656 Pilot Size","description":"\u003cdiv\u003e\n\u003cp\u003eThe Robert Charles Plain Shank Counterbore is a high-performance counterbore tool designed for precision machining in engineering, automotive, and workshop environments. Made from M35 HSS-E with 5% cobalt, it delivers exceptional heat resistance and wear life for consistent, clean counterboring results.\u003c\/p\u003e \u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eMaterial\u003c\/b\u003e: M35 HSS-E with 5% cobalt for improved heat resistance, wear life, and cutting performance\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eShank Type\u003c\/b\u003e: Plain shank for straightforward fitment in standard tool holders and stable machining\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003ePilot Size\u003c\/b\u003e: 0.656\" pilot diameter for accurate starting location and depth control\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eCap Screw Size\u003c\/b\u003e: 5\/8\" cap screw compatibility, aligning with common fastener specifications\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eCutting Geometry\u003c\/b\u003e: Optimized counterbore geometry to produce clean, square-bottom holes with minimal burrs\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eThis counterbore is ideally suited for precision engineering tasks, automotive assemblies, and general workshop use where durable tooling and repeatable results matter. The combination of cobalt-enhanced HSS and a plain shank enables reliable performance across a range of materials while providing easy installation in standard setups.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Robert Charles","offers":[{"title":"Default Title","offer_id":43411728924750,"sku":"5770-5\/8-1\/32 OVER","price":142.2,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0560\/3747\/4382\/files\/Robert_Charles_Counterbores_36d3d258-6eea-4fca-869f-598693df5618.png?v=1769685383","url":"https:\/\/www.protool-ltd.co.uk\/products\/5770-5-8-1-32-over","provider":"Protool Precision Tools","version":"1.0","type":"link"}