{"product_id":"1-7-8-4mt-spiral-flute-taper-shank-bridge-reamer_dwrrb1-7-8","title":"1-7\/8\" 4MT Spiral Flute Taper Shank Bridge Reamer | HSS | DWRRB1-7\/8","description":"\u003cdiv\u003e\n\u003cp\u003eBridge reamers are precision tools used to finish pre-drilled holes to tight tolerances in metalworking and industrial assembly. The subject tool features a 1-7\/8 inches diameter, spiral flute geometry mounted on a taper shank compatible with 4MT tool holders for accurate hole finishing in machine shops and production facilities.\u003c\/p\u003e \u003ch2\u003eSpecs\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eDimensions\u003c\/strong\u003e: Diameter 1-7\/8 inches\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eDrive type\u003c\/strong\u003e: 4MT Morse Taper\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eShank\u003c\/strong\u003e: Taper Shank\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eMaterial grade\u003c\/strong\u003e: High Speed Steel\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eFeatures\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eFlute\u003c\/strong\u003e: Spiral flute design for efficient chip evacuation and improved cutting stability during hole finishing\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eCutting action\u003c\/strong\u003e: Provides controlled material removal with minimal bore deviation\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eShank interface\u003c\/strong\u003e: 4MT taper shank enables secure seating in standard machine tool spindles, reducing runout\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eApplications\u003c\/strong\u003e: Suitable for finishing holes in steel, cast iron, and alloy components such as automotive housings, hydraulic blocks, and valve bodies\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eMaterial performance\u003c\/strong\u003e: High Speed Steel construction delivers wear resistance and repeatable performance across multiple passes\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eMaintenance\u003c\/strong\u003e: Employ appropriate coolant or lubrication to minimize heat buildup and edge wear; store in a dry environment to preserve edge integrity\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eBest practices\u003c\/strong\u003e: Ensure proper axis alignment and stable workholding to minimize chatter and achieve consistent bore geometry\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Drill America","offers":[{"title":"Default Title","offer_id":53058244968727,"sku":"DWRRB1-7\/8","price":329.12,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0836\/1125\/5063\/files\/Group_12_8c43f675-caca-49bb-9e00-f9fa56f2aae9.webp?v=1778202979","url":"https:\/\/mutualscrew.com\/products\/1-7-8-4mt-spiral-flute-taper-shank-bridge-reamer_dwrrb1-7-8","provider":"Mutual Screw \u0026 Supply","version":"1.0","type":"link"}