{"product_id":"5770-4-1-64-over","title":"Robert Charles Plain Shank Counterbore M35-HSS-E 5% Cobalt - #4 Cap Screw Size - 0.127 Pilot Size","description":"\u003cdiv\u003e\n\u003cp\u003eRobert Charles Plain Shank Counterbore in M35-HSS-E with 5% cobalt is built for professionals who demand durability and precision in metalworking. This high-performance counterbore is ideal for precision engineering, automotive work, and general workshops where clean, repeatable counterbores are essential.\u003c\/p\u003e \u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eMaterial and cobalt content\u003c\/b\u003e: M35-HSS-E with 5% cobalt for improved heat resistance and wear life, maintaining sharpness under demanding cutting conditions.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003ePlain shank design\u003c\/b\u003e: Easy fit in standard tool holders, enabling stable, reliable machining without special adapters.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003ePilot size\u003c\/b\u003e: 0.127\" pilot provides a precise starting point for accurate hole geometry.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eCap screw compatibility\u003c\/b\u003e: Sized for #4 cap screws, ensuring proper clearance and seating in assembly work.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eCounterboring performance\u003c\/b\u003e: Engineered for clean, accurate counterbores with consistent depth control.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eIdeal applications\u003c\/b\u003e: Suitable for precision engineering, automotive fabrication, and general metalworking environments.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eIn use, this counterbore delivers true, repeatable results that improve part fit and finish. The cobalt-enhanced alloy stands up to extended cutting cycles, reducing tool downtime, while the plain shank simplifies setup and maintenance in busy shops. For craftsmen and technicians who value consistency and reliability, it provides a dependable solution for producing precise countersinks in stainless steel, aluminum, and other common metals.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Robert Charles","offers":[{"title":"Default Title","offer_id":43411726794830,"sku":"5770-4-1\/64 OVER","price":33.97,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0560\/3747\/4382\/files\/Robert_Charles_Counterbores_49b6e515-2394-493d-8fd5-1bd85e5b2a9c.png?v=1769685237","url":"https:\/\/www.protool-ltd.co.uk\/products\/5770-4-1-64-over","provider":"Protool Precision Tools","version":"1.0","type":"link"}