{"product_id":"kennametal-1606881-replaceable-tip-drill-16-28-16-78mm","title":"Kennametal 1606881 Replaceable-tip Drill 16.28-16.78mm","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe KENNAMETAL 1606881 is a replaceable-tip drill body in the KSEM series, designed for high-productivity hole-making in metalworking and machining applications. It accepts KSEM0641 insert tips at an Insert Seat Size 1, allowing worn or damaged cutting edges to be swapped at the machine without scrapping the entire body. The drill covers a diameter range of 16.28 to 16.78 mm (0.6409 to 0.6606 inches) and reaches a maximum drill depth of 89.92 mm (3.54 inches), representing a 5xD depth-to-diameter ratio. Through-coolant delivery via a 3.50 mm coolant hole keeps cutting edges cool and aids chip evacuation at depth. Licensed machinists and CNC setup technicians are the primary installers of this tooling.\u003c\/p\u003e\n\u003cp\u003eThis drill body is suited for production machining environments where consistent hole quality and fast insert changeouts are priorities. Typical applications include CNC machining centers and turning centers handling ferrous and non-ferrous workpieces requiring holes in the 16 to 17 mm range. The 19.05 mm straight-cylindrical shank fits standard tool holders and chucks sized for that shank diameter. The 165.1 mm overall length and 110.24 mm flute length provide clearance for chips across the full depth range. The 50.80 mm shank length gives secure grip in the tool holder during aggressive feed-rate operations.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eReplaceable KSEM0641 insert tips eliminate the need to replace the entire drill body on edge wear\u003c\/li\u003e\n  \u003cli\u003eThrough-coolant delivery via 3.50 mm internal coolant holes improves tool life and chip evacuation at depth\u003c\/li\u003e\n  \u003cli\u003e5xD depth-to-diameter ratio supports holes up to 89.92 mm deep in a single operation\u003c\/li\u003e\n  \u003cli\u003eStraight-cylindrical 19.05 mm shank provides broad compatibility with standard CNC tool holders and drill chucks\u003c\/li\u003e\n  \u003cli\u003e165.1 mm overall length with 110.24 mm flute length maintains chip flow across the full drilling range\u003c\/li\u003e\n  \u003cli\u003ePart of the KSEM series, allowing a common insert platform across multiple drill body sizes\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for use with KSEM0641 series replaceable insert tips at Insert Seat Size 1. The 19.05 mm straight-cylindrical shank is compatible with tool holders and drill chucks designed for that shank diameter. This body is part of the KSEM series platform.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation and tool changes should be performed by a qualified machinist or CNC tooling technician with the machine in a safe, powered-down or E-stopped state and the spindle fully locked before any insert or body work. Verify that the tool holder bore matches the 19.05 mm shank diameter and that the retention mechanism provides adequate clamping force for the intended feed rates. Follow the machine tool and toolholder manufacturer torque specifications when securing the shank. Confirm through-coolant passages are clear and that the machine coolant system is set to the pressure range specified by the insert manufacturer before running at full depth.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMinimum Drill Diameter\u003c\/strong\u003e: 16.28 mm (0.6409 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaximum Drill Diameter\u003c\/strong\u003e: 16.78 mm (0.6606 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaximum Drill Depth\u003c\/strong\u003e: 89.92 mm (3.54 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Depth by Diameter Ratio\u003c\/strong\u003e: 5xD\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 165.1 mm (6.5 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute Length\u003c\/strong\u003e: 110.24 mm (4.3402 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Type\u003c\/strong\u003e: Straight-Cylindrical\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 19.05 mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Length\u003c\/strong\u003e: 50.80 mm (2.0 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCompatible Insert Style\u003c\/strong\u003e: KSEM0641\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Seat Size\u003c\/strong\u003e: 1\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoolant Through\u003c\/strong\u003e: Yes\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoolant Hole Diameter\u003c\/strong\u003e: 3.50 mm (0.1378 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: KSEM\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.0617 pounds\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUNSPSC Code\u003c\/strong\u003e: 23291502\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: KENNAMETAL\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 1606881\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"KENNAMETAL","offers":[{"title":"Default Title","offer_id":51739717665074,"sku":"1606881","price":636.72,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/30ed7ba4b0f0830935eeb206e9f24be3_432b4853-bd45-4b35-ac61-4df1a6c85821.jpg?v=1788818177","url":"https:\/\/voomisupply.com\/products\/kennametal-1606881-replaceable-tip-drill-16-28-16-78mm","provider":"Voomi Supply","version":"1.0","type":"link"}