{"product_id":"sandvik-coromant-5726289-boring-grooving-bar-holder","title":"Sandvik Coromant 5726289 Boring Grooving Bar Holder","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe SANDVIK COROMANT 5726289 is a boring and grooving bar holder designed for precision internal turning operations on CNC lathes and turning centers. It features a 4mm inside diameter bore and a 5\/8-inch (16mm) outside diameter shank, with an overall length of 2.165 inches (54.99mm). The head diameter measures 17.5mm, providing stable support during close-tolerance grooving and boring passes. This holder is part of the CoroTurn XS series and includes through-coolant capability, delivering cutting fluid directly to the tool tip for improved chip evacuation and extended insert life. It is sold as a single unit and is intended for installation by machinists and CNC tooling professionals.\u003c\/p\u003e\u003cp\u003eThe 5726289 is suited for small-diameter internal machining applications where access is restricted and thermal management is critical. Through-coolant delivery makes it a practical choice for deep-bore operations in stainless steel, titanium, and other difficult-to-machine alloys. It is typically mounted in gang-tool or turret-style setups on CNC turning equipment requiring compact, high-precision toolholding in the CoroTurn XS series format.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e4mm inside diameter bore for small-diameter internal turning and grooving\u003c\/li\u003e\n\u003cli\u003e5\/8-inch (16mm) outside diameter shank for secure turret or block mounting\u003c\/li\u003e\n\u003cli\u003eOverall length of 2.165 inches (54.99mm) for compact toolpost fitment\u003c\/li\u003e\n\u003cli\u003e17.5mm head diameter provides rigidity and stability during interrupted cuts\u003c\/li\u003e\n\u003cli\u003eThrough-coolant design directs fluid to the cutting zone for chip control and heat reduction\u003c\/li\u003e\n\u003cli\u003ePart of the CoroTurn XS series, engineered for precision small-part machining\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned for use within the SANDVIK COROMANT CoroTurn XS tooling system. Confirm shank dimensions and coolant port configuration match your machine turret or toolblock before installation.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation should be performed by a qualified machinist or CNC tooling technician. Power down and lock out the machine spindle before mounting or removing toolholders. Verify that the coolant-through port aligns with the machine turret supply line and that all clamp screws are torqued per the machine tool manufacturer specifications. Do not exceed the maximum spindle speed or depth-of-cut ratings specified in the SANDVIK COROMANT CoroTurn XS product documentation.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eInside Diameter\u003c\/strong\u003e: 4mm (0.1575 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutside Diameter\u003c\/strong\u003e: 16mm (5\/8 inch \/ 0.6250 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 54.99mm (2.165 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHead Diameter\u003c\/strong\u003e: 17.5mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThrough Coolant\u003c\/strong\u003e: Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: CoroTurn XS\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Dimensions\u003c\/strong\u003e: 3.31 inches L x 1.42 inches W x 1.42 inches H\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.27 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Quantity\u003c\/strong\u003e: 1\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: SANDVIK COROMANT\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 5726289\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SANDVIK COROMANT","offers":[{"title":"Default Title","offer_id":51746421506354,"sku":"5726289","price":254.77,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/27a2ac7988feff0ff47ae0d066385f0b_73d026a4-6ed4-4e37-9fbe-55a8615bce45.jpg?v=1788869916","url":"https:\/\/voomisupply.com\/products\/sandvik-coromant-5726289-boring-grooving-bar-holder","provider":"Voomi Supply","version":"1.0","type":"link"}