{"product_id":"3227-100","title":"87-100mm 3.43-3.94\" Three Point Internal Bore Micrometer - 3227 Series (Insize)","description":"\u003cdiv\u003e\n\u003cp\u003e\nThe Insize 3227 three-point internal bore micrometer is a precision tool designed to accurately measure inside diameters with repeatable results. Suited for engineers, machinists, quality-control staff, and workshop enthusiasts, it uses a three-point contact to deliver consistent readings on bores, bushings, and cylindrical housings. Built with carbide measuring faces and a ratchet stop, it offers durability and controlled contact for reliable measurements, and it covers a wide range up to 300 mm with a fine 0.005 mm graduation. The instrument is supplied with a setting ring for quick, repeatable setup.\n\u003c\/p\u003e \u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eThree-point contact for true bore readings\u003c\/b\u003e: The three-point design provides stable, accurate contact inside the bore, improving roundness detection and reducing measurement errors on cylindrical parts.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eDurable carbide faces with ratchet stop\u003c\/b\u003e: Carbide measuring faces resist wear for long-term accuracy, while the ratchet stop ensures a consistent measuring force for repeatable results.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eWide range to 300 mm with precise 0.005 mm graduation\u003c\/b\u003e: Combines broad measurement capability with fine resolution, and includes a setting ring to speed setup and ensure quick, repeatable checks.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\nThis combination supports efficient bore inspection, helps reduce rework, and improves workflow across production and QC environments. With straightforward operation, durable construction, and dependable readings, the 3227 is a trustworthy choice for demanding internal bore measurements.\n\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Insize","offers":[{"title":"Default Title","offer_id":43572601946190,"sku":"3227-100","price":449.74,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0560\/3747\/4382\/files\/3227-INSIZE-1_ede529a4-2936-45de-9107-498d1e2199ab.jpg?v=1774261564","url":"https:\/\/www.protool-ltd.co.uk\/products\/3227-100","provider":"Protool Precision Tools","version":"1.0","type":"link"}