{"product_id":"mtl4r0-1l15bmk","title":"Carmex Carbide Tiny Tool - Boring Bar - MTL - BMK Grade - 4.1mm Minimum Diameter x 15mm Reach x R0.1 (Left Hand)","description":"\u003cdiv\u003e\n\u003cp\u003e\nThe Carmex Carbide Tiny Tool is a compact solid carbide boring bar designed for tight spaces and high-precision work. It’s ideal for engineers, machinists, and hobbyists who need reliable boring capability with the flexibility to handle general turning as well. With a 4.1 mm minimum diameter, 15 mm reach, and a left-hand R0.1 edge, it delivers controlled entry and consistent cuts in small bore applications.\n\u003c\/p\u003e \u003cp\u003e\nThis tool is offered in BMK-grade carbide, featuring sub-micron geometry and an advanced PVD triple coating for exceptional heat resistance and smooth cutting performance. It belongs to a line that also includes BXC TiN-coated bars optimized for low cutting speeds, extending versatility across stainless steels and other alloys.\n\u003c\/p\u003e \u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eCompact bore-ready geometry\u003c\/b\u003e: 4.1 mm minimum diameter and 15 mm reach with a left-hand R0.1 edge let you access tight bores and close contours while maintaining precise, repeatable cuts.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eBMK-grade carbide with triple PVD coating\u003c\/b\u003e: Sub-micron carbide plus an advanced PVD coating delivers high heat resistance and smooth cutting for longer tool life across demanding materials (ISO K10–K20).\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eVersatile performance for boring and turning\u003c\/b\u003e: Primarily designed for boring but capable for general turning, suitable for stainless steels and a wide range of materials to support multiple operations without changing tooling.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\nThis tiny boring bar streamlines your workflow by enabling accurate hole finishing in compact setups, reducing tool changes, and delivering dependable finishes across a variety of materials. Choose BMK for high-temperature, long-run performance or rely on the BXC-coated option for efficient low-speed stainless cutting, and you’ll maintain consistent results from first cut to final pass.\n\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Carmex","offers":[{"title":"Default Title","offer_id":43428813078606,"sku":"MTL4R0.1L15BMK","price":25.61,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0560\/3747\/4382\/files\/MTR_BMK_101c733e-4e7c-4f44-8fc1-42dec80519d8.png?v=1770385027","url":"https:\/\/www.protool-ltd.co.uk\/products\/mtl4r0-1l15bmk","provider":"Protool Precision Tools","version":"1.0","type":"link"}