{"product_id":"hertel-h08614760-indexable-boring-bar-0-285-in-min-bore","title":"Hertel H08614760 Indexable Boring Bar 0.285 in Min Bore","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe HERTEL H08614760 is a steel indexable boring bar designed for precision internal turning and boring operations on CNC lathes and manual turning centers. Built to the HBBG toolholder style, it accepts WPGT inserts secured by a screw-clamp holding method, delivering repeatable insert positioning for tight-tolerance bore work. The bar has a minimum bore diameter of 0.285 inches and a shank diameter of 0.25 inches, making it well-suited for small-diameter internal machining. Coolant-through capability supports chip evacuation and tool life in deep-bore applications. Machinists and toolroom technicians working in job shops, production facilities, or maintenance operations will find this bar a reliable right-hand-cut solution for ferrous and non-ferrous materials.\u003c\/p\u003e\u003cp\u003eThis boring bar is intended for right-hand cutting applications requiring access to bores as small as 0.285 inches in diameter, with a maximum bore depth of 1.0 inch. The 0.25 inch shank mounts in standard quarter-inch boring bar holders and quick-change tooling systems commonly found on CNC and manual lathes. It is suited for production runs and prototype work where consistent insert indexing and coolant delivery are priorities. No secondary boring head is required for typical shallow-bore applications within the rated depth.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eHBBG toolholder style with screw-clamp insert retention for secure, repeatable indexing\u003c\/li\u003e\n\u003cli\u003eCompatible with WPGT inserts, a widely available insert geometry for internal boring\u003c\/li\u003e\n\u003cli\u003eCoolant-through design aids chip removal and extends insert life in deep or difficult bores\u003c\/li\u003e\n\u003cli\u003eRight-hand cut configuration for standard CNC lathe and manual turning setups\u003c\/li\u003e\n\u003cli\u003eSteel construction provides rigidity in the 0.25 inch shank diameter class\u003c\/li\u003e\n\u003cli\u003eCompact 4.0 inch overall length suits close-clearance turret and gang-tool setups\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eAccepts WPGT style inserts. Shank diameter of 0.25 inches fits standard quarter-inch boring bar pockets and quick-change holders. MSC and manufacturer reference number HBBG-S250R\/L3-4.0-.285 may be used for cross-reference purposes.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation should be performed by a qualified machinist following shop safety procedures. Ensure the lathe or turning center is powered down and in a safe state before mounting or removing the boring bar. Secure the shank fully within the toolholder pocket to the recommended engagement depth and verify insert seating and screw torque before initiating a cut. Refer to the insert manufacturer specifications and your machine tool manual for feed, speed, and depth-of-cut parameters appropriate to the workpiece material.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eToolholder Style\u003c\/strong\u003e: HBBG\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMinimum Bore Diameter\u003c\/strong\u003e: 0.285 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Bore Depth\u003c\/strong\u003e: 1.0 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.25 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 4.0 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHand of Cut\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Compatibility\u003c\/strong\u003e: WPGT\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Holding Method\u003c\/strong\u003e: Screw\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTool Material\u003c\/strong\u003e: Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoolant Through\u003c\/strong\u003e: Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Dimensions\u003c\/strong\u003e: 4.25 inches L x 0.5 inches W x 0.5 inches H\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.55 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: HERTEL\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: H08614760\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"HERTEL","offers":[{"title":"Default Title","offer_id":51748676305202,"sku":"H08614760","price":136.13,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/6695d6bab6d0437722fb8098a0fbf0f6.jpg?v=1788896520","url":"https:\/\/voomisupply.com\/products\/hertel-h08614760-indexable-boring-bar-0-285-in-min-bore","provider":"Voomi Supply","version":"1.0","type":"link"}