{"product_id":"iscar-3101938-indexable-square-shoulder-end-mill","title":"Iscar 3101938 Indexable Square-shoulder End Mill","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe ISCAR 3101938 is an indexable square-shoulder end mill from the Heli2000 series, designed for precision milling operations in demanding shop environments. It features a 1-1\/4 inch cutting diameter and a maximum depth of cut of 0.394 inches, with a 90-degree lead angle that produces true square shoulders in a single pass. The tool body is solid carbide construction with four flute positions, each secured by a screw-clamping insert holding method. The Weldon flat shank measures 3\/4 inch in diameter and 2.3 inches in length, providing positive drive and resistance to pullout under heavy milling loads. Overall length is 3-1\/2 inches. Licensed machinists and CNC operators working in aerospace, general metalworking, and precision part production are the primary users of this toolholder.\u003c\/p\u003e\u003cp\u003eThis end mill is suited for square-shoulder face milling, slotting, and ramping operations on machining centers and CNC mills. The Heli2000 platform accommodates a maximum ramping angle of 3 degrees. It accepts AP..1003.. and HM90 AP..1003.. insert styles, including APCR, APCT, APKR, APKT, APKW, HM90APCT, HM90APKT, and HM90APKW 1003 inserts, giving shops flexibility to run different insert grades and geometries depending on workpiece material and surface finish requirements. The positive rake design reduces cutting forces and supports higher feed rates on ferrous and non-ferrous materials.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e1-1\/4 inch cutting diameter with 90-degree lead angle for true square-shoulder profiles\u003c\/li\u003e\n\u003cli\u003eMaximum depth of cut: 0.394 inches per pass\u003c\/li\u003e\n\u003cli\u003e4-insert positions with screw-clamp holding for secure, repeatable indexing\u003c\/li\u003e\n\u003cli\u003eWeldon flat shank (3\/4 inch diameter) resists rotational pullout during heavy cuts\u003c\/li\u003e\n\u003cli\u003ePositive rake geometry reduces cutting forces and supports aggressive feed rates\u003c\/li\u003e\n\u003cli\u003eCoolant-through: not available on this body; external coolant application required\u003c\/li\u003e\n\u003cli\u003eManufactured to AS 9100, ISO 9001:2008, ISO 14001:2004, ISO 50001, and OHSAS 18001:2007 standards\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eCompatible insert styles include AP..1003.. and HM90 AP..1003.. series: APCR, APCT, APKR, APKT, APKW, HM90APCT, HM90APKT, and HM90APKW 1003. Toolholder catalog reference: HM90 E90A-D1.25-4-W.75.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation is performed by qualified machinists or CNC setup technicians. Before mounting or indexing inserts, shut down the spindle and confirm the machine is in a locked-out, zero-energy state per OSHA lockout\/tagout procedures. Torque insert screws using the correct ISCAR torx key to the manufacturer-specified value listed in the Heli2000 tooling catalog — do not estimate by feel. Verify shank runout and axial seating in the holder before resuming cutting operations.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting Diameter\u003c\/strong\u003e: 1-1\/4 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Depth of Cut\u003c\/strong\u003e: 0.394 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.75 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Type\u003c\/strong\u003e: Weldon Flat\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Length\u003c\/strong\u003e: 2.3 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHead Length\u003c\/strong\u003e: 1.2 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length (OAL)\u003c\/strong\u003e: 3.5 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Flutes\u003c\/strong\u003e: 4\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Cutter Inserts\u003c\/strong\u003e: 4\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLead Angle\u003c\/strong\u003e: 90 degrees\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Ramping Angle\u003c\/strong\u003e: 3 degrees\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRake\u003c\/strong\u003e: Positive\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Holding Method\u003c\/strong\u003e: Screw\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoolant Through\u003c\/strong\u003e: No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTool Material\u003c\/strong\u003e: Solid Carbide\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutter Style\u003c\/strong\u003e: HM90 E90A-10\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: Heli2000\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.637 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandards\u003c\/strong\u003e: AS 9100, ISO 9001:2008, ISO 14001:2004, ISO 50001, OHSAS 18001:2007\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: ISCAR\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 3101938\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ISCAR","offers":[{"title":"Default Title","offer_id":51746620473650,"sku":"3101938","price":569.71,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/b4cd0b0565305cd6f584907bd54d6991.jpg?v=1788871839","url":"https:\/\/voomisupply.com\/products\/iscar-3101938-indexable-square-shoulder-end-mill","provider":"Voomi Supply","version":"1.0","type":"link"}