{"product_id":"onsrud-91-106-spoilboard-surface-insert-cutter-4in","title":"Onsrud 91-106 Spoilboard Surface Insert Cutter 4in","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe ONSRUD 91-106 is an indexable spoilboard surface insert cutter designed for CNC routing applications requiring precise, repeatable surfacing passes. Built around a 4-inch cutting diameter and a 3\/4-inch shank, this tool accepts three carbide inserts of the ICK L 142 style, secured by screw-holding method for positive retention during high-feed operation. The right-hand cut geometry and straight cutter type make it a reliable choice for flattening MDF, phenolic, plywood, and other spoilboard materials on flatbed CNC routers. Licensed CNC machinists and production woodworking shops are the primary installers. Overall length is 3.05 inches with a 2-1\/4-inch shank length, and maximum depth of cut is 1\/8 inch per pass.\u003c\/p\u003e\n\u003cp\u003eThis cutter is suited for surfacing operations on aluminum, plastic, and wood workpieces. Its primary application is resurfacing CNC router spoilboards to restore a flat, true reference plane, though it also performs well on shallow facing passes on flat stock. The 4-inch diameter covers a wide swath per pass, reducing total cycle time when surfacing large panels. The indexable insert design allows worn cutting edges to be rotated or replaced without pulling the body from the spindle, which keeps downtime low in production environments.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e4-inch cutting diameter for wide coverage per surfacing pass\u003c\/li\u003e\n  \u003cli\u003eAccepts 3 ICK L 142 style carbide inserts, screw-held for secure retention\u003c\/li\u003e\n  \u003cli\u003eStraight cut geometry with right-hand cutting direction\u003c\/li\u003e\n  \u003cli\u003eMaximum depth of cut: 1\/8 inch per pass\u003c\/li\u003e\n  \u003cli\u003eCompatible workpiece materials: aluminum, plastic, and wood\u003c\/li\u003e\n  \u003cli\u003eIndexable inserts reduce downtime  -  rotate or replace edges without removing the body\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for use with ICK L 142 style inserts (compatible insert size code 142). Fits CNC router spindles with a 3\/4-inch collet or tool holder. Intended for spoilboard surfacing and shallow facing operations on aluminum, plastic, and wood.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation should be performed by a qualified CNC machinist or tooling technician. Power down and lock out the machine spindle before seating or indexing inserts. Verify collet torque and runout with a dial indicator before production use. Follow the router manufacturer's recommended RPM range for the cutter diameter to avoid overloading the spindle or damaging the inserts.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCutting Diameter\u003c\/strong\u003e: 4 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaximum Depth of Cut\u003c\/strong\u003e: 1\/8 inch\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 3\/4 inch\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Length\u003c\/strong\u003e: 2-1\/4 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length (OAL)\u003c\/strong\u003e: 3.05 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNumber of Inserts Required\u003c\/strong\u003e: 3\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCompatible Insert Style\u003c\/strong\u003e: ICK L 142\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCompatible Insert Size Code\u003c\/strong\u003e: 142\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Holding Method\u003c\/strong\u003e: Screw\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCutter Type\u003c\/strong\u003e: Straight\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCutting Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTool Material\u003c\/strong\u003e: Carbide\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePrimary Workpiece Materials\u003c\/strong\u003e: Aluminum, Plastic, Wood\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 1.5 pounds\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eStandard Information\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: ONSRUD\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 91-106\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ONSRUD","offers":[{"title":"Default Title","offer_id":67908015620402,"sku":"91-106","price":713.62,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/fb3a55334c399fdb1c1efe69d25eb01a.jpg?v=1791182194","url":"https:\/\/voomisupply.com\/products\/onsrud-91-106-spoilboard-surface-insert-cutter-4in","provider":"Voomi Supply","version":"1.0","type":"link"}