{"v":"2.0","page_type":"product","title":"257-3120","breadcrumbs":[{"label":"Home","href":"/python/html6/index.html"},{"label":"Brands","href":"/python/html6/menu_brand_index/menu_brand_index_brands_87101ba214.html"},{"label":"OSG","href":"/python/html6/menu_brand_products/1000/110000/menu_brand_products_osg_1_84432142d5.html"},{"label":"257-3120","href":null}],"content":{"product":{"mpn":"257-3120","manufacturer":"OSG","brand":"OSG","brand_url":"/python/html6/menu_brand_products/1000/110000/menu_brand_products_osg_1_84432142d5.html","title":"257-3120","description":"","attributes":[{"name":"Brand name","values":[{"value":"OSG","url":"/python/html6/menu_attr_pair/1000/113000000/113764000/menu_attr_pair_Brandname_OSG_1_bc8328576b.html"}],"name_url":"/python/html6/menu_attr_pair/1000/113000000/113764000/menu_attr_pair_Brandname_OSG_1_bc8328576b.html"},{"name":"Manufacturer name","values":[{"value":"OSG","url":"/python/html6/menu_attr_pair/1000/99000000/99349000/menu_attr_pair_Manufacturername_OSG_1_cd7e99d326.html"}],"name_url":"/python/html6/menu_attr_pair/1000/99000000/99349000/menu_attr_pair_Manufacturername_OSG_1_cd7e99d326.html"},{"name":"Manufacturer","values":[{"value":"OSG","url":"/python/html6/menu_attr_pair/1000/190000000/190374000/menu_attr_pair_Manufacturer_OSG_1_03fc2db33f.html"}],"name_url":"/python/html6/menu_attr_pair/1000/190000000/190374000/menu_attr_pair_Manufacturer_OSG_1_03fc2db33f.html"},{"name":"DimensionUnit","values":[{"value":"mm","url":"/python/html6/menu_attr_pair/1000/127000000/127454000/menu_attr_pair_DimensionUnit_mm_1_095b7e56e9.html"}],"name_url":"/python/html6/menu_attr_pair/1000/127000000/127454000/menu_attr_pair_DimensionUnit_mm_1_095b7e56e9.html"},{"name":"UNSPSC","values":[{"value":"23171610","url":"/python/html6/menu_attr_pair/1000/113000000/113573000/menu_attr_pair_UNSPSC_23171610_1_84c96f6d5f.html"}],"name_url":"/python/html6/menu_attr_pair/1000/113000000/113573000/menu_attr_pair_UNSPSC_23171610_1_84c96f6d5f.html"},{"name":"diameter","values":[{"value":"7.5406249999999995","url":"/python/html6/menu_attr_pair/1000/176000000/176811000/menu_attr_pair_diameter_75406249999999995_1_da89ef48d5.html"}],"name_url":"/python/html6/menu_attr_pair/1000/176000000/176811000/menu_attr_pair_diameter_75406249999999995_1_da89ef48d5.html"},{"name":"height","values":[{"value":"7.5406249999999995","url":"/python/html6/menu_attr_pair/1000/177000000/177376000/menu_attr_pair_height_75406249999999995_1_da928ec064.html"}],"name_url":"/python/html6/menu_attr_pair/1000/177000000/177376000/menu_attr_pair_height_75406249999999995_1_da928ec064.html"},{"name":"height_Attrib","values":[{"value":"Shank Dia.","url":"/python/html6/menu_attr_pair/1000/154000000/154115000/menu_attr_pair_heightAttrib_ShankDia_1_009e909452.html"}],"name_url":"/python/html6/menu_attr_pair/1000/154000000/154115000/menu_attr_pair_heightAttrib_ShankDia_1_009e909452.html"},{"name":"length","values":[{"value":"46.0","url":"/python/html6/menu_attr_pair/1000/36000000/36019000/menu_attr_pair_length_460_1_b2259ec04b.html"}],"name_url":"/python/html6/menu_attr_pair/1000/36000000/36019000/menu_attr_pair_length_460_1_b2259ec04b.html"},{"name":"length_Attrib","values":[{"value":"Flute Length","url":"/python/html6/menu_attr_pair/1000/174000000/174233000/menu_attr_pair_lengthAttrib_FluteLength_1_f6af8ebbb7.html"}],"name_url":"/python/html6/menu_attr_pair/1000/174000000/174233000/menu_attr_pair_lengthAttrib_FluteLength_1_f6af8ebbb7.html"},{"name":"moq","values":[{"value":"1","url":"/python/html6/menu_attr_pair/1000/164000000/164262000/menu_attr_pair_moq_1_1_29ca727a89.html"}],"name_url":"/python/html6/menu_attr_pair/1000/164000000/164262000/menu_attr_pair_moq_1_1_29ca727a89.html"},{"name":"MPN","values":[{"value":"257-3120","url":"/python/html6/menu_attr_pair/1000/31000000/31847000/menu_attr_pair_MPN_2573120_1_97d2d43a17.html"}],"name_url":"/python/html6/menu_attr_pair/1000/31000000/31847000/menu_attr_pair_MPN_2573120_1_97d2d43a17.html"},{"name":"multiple","values":[{"value":"1","url":"/python/html6/menu_attr_pair/1000/257000000/257999000/menu_attr_pair_multiple_1_1_2f60c1bab8.html"}],"name_url":"/python/html6/menu_attr_pair/1000/257000000/257999000/menu_attr_pair_multiple_1_1_2f60c1bab8.html"},{"name":"qtyInStock","values":[{"value":"0","url":"/python/html6/menu_attr_pair/1000/119000000/119332000/menu_attr_pair_qtyInStock_0_1_38510c9e21.html"}],"name_url":"/python/html6/menu_attr_pair/1000/119000000/119332000/menu_attr_pair_qtyInStock_0_1_38510c9e21.html"},{"name":"SKU","values":[{"value":"35DR05","url":"/python/html6/menu_attr_pair/1000/219000000/219377000/menu_attr_pair_SKU_35DR05_1_b5ee6eb466.html"}],"name_url":"/python/html6/menu_attr_pair/1000/219000000/219377000/menu_attr_pair_SKU_35DR05_1_b5ee6eb466.html"},{"name":"tierMinQty1","values":[{"value":"1","url":"/python/html6/menu_attr_pair/1000/226000000/226987000/menu_attr_pair_tierMinQty1_1_1_974840705d.html"}],"name_url":"/python/html6/menu_attr_pair/1000/226000000/226987000/menu_attr_pair_tierMinQty1_1_1_974840705d.html"},{"name":"tierPrice1","values":[{"value":"142.5","url":"/python/html6/menu_attr_pair/1000/230000000/230814000/menu_attr_pair_tierPrice1_1425_1_1c2ee2dbb9.html"}],"name_url":"/python/html6/menu_attr_pair/1000/230000000/230814000/menu_attr_pair_tierPrice1_1425_1_1c2ee2dbb9.html"},{"name":"width","values":[{"value":"7.5406249999999995","url":"/python/html6/menu_attr_pair/1000/113000000/113516000/menu_attr_pair_width_75406249999999995_1_e6c4206d70.html"}],"name_url":"/python/html6/menu_attr_pair/1000/113000000/113516000/menu_attr_pair_width_75406249999999995_1_e6c4206d70.html"},{"name":"width_Attrib","values":[{"value":"Shank Dia.","url":"/python/html6/menu_attr_pair/1000/206000000/206547000/menu_attr_pair_widthAttrib_ShankDia_1_2fec11d5a9.html"}],"name_url":"/python/html6/menu_attr_pair/1000/206000000/206547000/menu_attr_pair_widthAttrib_ShankDia_1_2fec11d5a9.html"},{"name":"Item","values":[{"value":"Chucking Reamer","url":"/python/html6/menu_attr_pair/1000/22000000/22646000/menu_attr_pair_Item_ChuckingReamer_1_792f62edca.html"}],"name_url":"/python/html6/menu_attr_pair/1000/22000000/22646000/menu_attr_pair_Item_ChuckingReamer_1_792f62edca.html"},{"name":"Measurement System","values":[{"value":"Metric","url":"/python/html6/menu_attr_pair/1000/92000000/92674000/menu_attr_pair_MeasurementSystem_Metric_1_c4c67cab08.html"}],"name_url":"/python/html6/menu_attr_pair/1000/92000000/92674000/menu_attr_pair_MeasurementSystem_Metric_1_c4c67cab08.html"},{"name":"Reamer Size","values":[{"value":"7.92 mm","url":"/python/html6/menu_attr_pair/1000/119000000/119727000/menu_attr_pair_ReamerSize_792mm_1_29436f645c.html"}],"name_url":"/python/html6/menu_attr_pair/1000/119000000/119727000/menu_attr_pair_ReamerSize_792mm_1_29436f645c.html"},{"name":"Decimal Equivalent","values":[{"value":"0.3120","url":"/python/html6/menu_attr_pair/1000/152000000/152451000/menu_attr_pair_DecimalEquivalent_03120_1_83437a3796.html"}],"name_url":"/python/html6/menu_attr_pair/1000/152000000/152451000/menu_attr_pair_DecimalEquivalent_03120_1_83437a3796.html"},{"name":"Shank Type - Machining","values":[{"value":"Straight","url":"/python/html6/menu_attr_pair/1000/204000000/204737000/menu_attr_pair_ShankTypeMachining_Straight_1_7021f8396e.html"}],"name_url":"/python/html6/menu_attr_pair/1000/204000000/204737000/menu_attr_pair_ShankTypeMachining_Straight_1_7021f8396e.html"},{"name":"Shank Dia","values":[{"value":"19/64 in","url":"/python/html6/menu_attr_pair/1000/153000/menu_attr_pair_ShankDia_1964in_1_7bbea9aab1.html"}],"name_url":"/python/html6/menu_attr_pair/1000/153000/menu_attr_pair_ShankDia_1964in_1_7bbea9aab1.html"},{"name":"Flute Type","values":[{"value":"Straight","url":"/python/html6/menu_attr_pair/1000/265000000/265561000/menu_attr_pair_FluteType_Straight_1_7d8d96fc3d.html"}],"name_url":"/python/html6/menu_attr_pair/1000/265000000/265561000/menu_attr_pair_FluteType_Straight_1_7d8d96fc3d.html"},{"name":"Number of Flutes","values":[{"value":"2","url":"/python/html6/menu_attr_pair/1000/172000000/172794000/menu_attr_pair_NumberofFlutes_2_1_c34d47ac74.html"}],"name_url":"/python/html6/menu_attr_pair/1000/172000000/172794000/menu_attr_pair_NumberofFlutes_2_1_c34d47ac74.html"},{"name":"Flute Length","values":[{"value":"46.00 mm","url":"/python/html6/menu_attr_pair/1000/260000000/260177000/menu_attr_pair_FluteLength_4600mm_1_b78757b225.html"}],"name_url":"/python/html6/menu_attr_pair/1000/260000000/260177000/menu_attr_pair_FluteLength_4600mm_1_b78757b225.html"},{"name":"Spiral Direction","values":[{"value":"Neutral","url":"/python/html6/menu_attr_pair/1000/87000000/87577000/menu_attr_pair_SpiralDirection_Neutral_1_bf1c2f5f9f.html"}],"name_url":"/python/html6/menu_attr_pair/1000/87000000/87577000/menu_attr_pair_SpiralDirection_Neutral_1_bf1c2f5f9f.html"},{"name":"Coolant Fed","values":[{"value":"Non-Coolant Through","url":"/python/html6/menu_attr_pair/1000/109000000/109437000/menu_attr_pair_CoolantFed_NonCoolantThrough_1_2ad65116d5.html"}],"name_url":"/python/html6/menu_attr_pair/1000/109000000/109437000/menu_attr_pair_CoolantFed_NonCoolantThrough_1_2ad65116d5.html"},{"name":"Overall Length","values":[{"value":"4 in","url":"/python/html6/menu_attr_pair/1000/133000000/133912000/menu_attr_pair_OverallLength_4in_1_83f7b35a78.html"}],"name_url":"/python/html6/menu_attr_pair/1000/133000000/133912000/menu_attr_pair_OverallLength_4in_1_83f7b35a78.html"},{"name":"Material - Machining","values":[{"value":"Carbide","url":"/python/html6/menu_attr_pair/1000/255000000/255646000/menu_attr_pair_MaterialMachining_Carbide_1_9101eaf410.html"}],"name_url":"/python/html6/menu_attr_pair/1000/255000000/255646000/menu_attr_pair_MaterialMachining_Carbide_1_9101eaf410.html"},{"name":"Finish - Machining","values":[{"value":"Bright (Uncoated)","url":"/python/html6/menu_attr_pair/1000/62000000/62389000/menu_attr_pair_FinishMachining_BrightUncoated_1_8f8e2981c1.html"}],"name_url":"/python/html6/menu_attr_pair/1000/62000000/62389000/menu_attr_pair_FinishMachining_BrightUncoated_1_8f8e2981c1.html"},{"name":"Cutting Direction - Machining","values":[{"value":"Right Hand","url":"/python/html6/menu_attr_pair/1000/246000000/246015000/menu_attr_pair_CuttingDirectionMachining_RightHand_1_ea5e5eb36f.html"}],"name_url":"/python/html6/menu_attr_pair/1000/246000000/246015000/menu_attr_pair_CuttingDirectionMachining_RightHand_1_ea5e5eb36f.html"},{"name":"Cutting Dia Tolerance","values":[{"value":"+0.0005 in /-0.0000 in","url":"/python/html6/menu_attr_pair/1000/167000000/167448000/menu_attr_pair_CuttingDiaTolerance_00005in00000in_1_4a2a9abe09.html"}],"name_url":"/python/html6/menu_attr_pair/1000/167000000/167448000/menu_attr_pair_CuttingDiaTolerance_00005in00000in_1_4a2a9abe09.html"},{"name":"Primary Material Application","values":[{"value":"Carbon Fiber","url":"/python/html6/menu_attr_pair/1000/57000000/57431000/menu_attr_pair_PrimaryMaterialApplication_CarbonFiber_1_9a381cda2d.html"}],"name_url":"/python/html6/menu_attr_pair/1000/57000000/57431000/menu_attr_pair_PrimaryMaterialApplication_CarbonFiber_1_9a381cda2d.html"},{"name":"Primary Material Application ISO Code","values":[{"value":"O","url":"/python/html6/menu_attr_pair/1000/107000000/107313000/menu_attr_pair_PrimaryMaterialApplicationISOCode_O_1_ef5e9cac9c.html"}],"name_url":"/python/html6/menu_attr_pair/1000/107000000/107313000/menu_attr_pair_PrimaryMaterialApplicationISOCode_O_1_ef5e9cac9c.html"},{"name":"Reamer Application","values":[{"value":"Through Hole","url":"/python/html6/menu_attr_pair/1000/85000000/85809000/menu_attr_pair_ReamerApplication_ThroughHole_1_3d43dc2df3.html"}],"name_url":"/python/html6/menu_attr_pair/1000/85000000/85809000/menu_attr_pair_ReamerApplication_ThroughHole_1_3d43dc2df3.html"},{"name":"Size - Decimal","values":[{"value":"7.92mm - 0.3120","url":"/python/html6/menu_attr_pair/1000/61000000/61901000/menu_attr_pair_SizeDecimal_792mm03120_1_b8664bdb7b.html"}],"name_url":"/python/html6/menu_attr_pair/1000/61000000/61901000/menu_attr_pair_SizeDecimal_792mm03120_1_b8664bdb7b.html"},{"name":"Series","values":[{"value":"AERO-D-Ream","url":"/python/html6/menu_attr_pair/1000/203000000/203050000/menu_attr_pair_Series_AERODReam_1_4518204024.html"}],"name_url":"/python/html6/menu_attr_pair/1000/203000000/203050000/menu_attr_pair_Series_AERODReam_1_4518204024.html"},{"name":"List Number","values":[{"value":"257","url":"/python/html6/menu_attr_pair/1000/56000000/56089000/menu_attr_pair_ListNumber_257_1_d596537ed4.html"}],"name_url":"/python/html6/menu_attr_pair/1000/56000000/56089000/menu_attr_pair_ListNumber_257_1_d596537ed4.html"}],"images":[],"distributors":[{"name":"Grainger","sku":"35DR05","url":"https://www.grainger.com/product/OSG-7-92mm-Chucking-Reamer-35DR05","pricing":[{"quantity":1,"price_usd":142.5}],"stock":{"available":false,"quantity":null,"lead_time_days":null},"moq":1,"multiple":1,"image":"https://static.grainger.com/rp/s/is/image/Grainger/35DP60_AW01"},{"name":"Zoro","sku":"G1687765","url":"https://www.zoro.com/osg-chucking-reamer-18160-in-2-fl-carbide-257-3120/i/G1687765/","pricing":[{"quantity":1,"price_usd":104.99}],"stock":{"available":false,"quantity":null,"lead_time_days":null},"moq":1,"multiple":1,"image":"https://www.zoro.com/static/cms/product/full/Z0t2BzhcpIx_.JPG"},{"name":"tmttoolbox.com","sku":"257-3120","url":"https://tmttoolbox.com/product/03120-x-1816-x-4-aero-ream/","pricing":[{"quantity":1,"price_usd":80.09}],"stock":{"available":false,"quantity":null,"lead_time_days":null},"moq":1,"multiple":1}],"amazon":{"available":false,"products":[]},"metadata":{"generated_date":"2026-09-17","last_updated":"2026-09-17","data_sources":["Grainger","Zoro","tmttoolbox.com"],"completeness":0.8,"version":"1.2"}}},"pagination":null,"nav":{"home":"/python/html6/index.html","brands":"/python/html6/menu_brand_index/menu_brand_index_brands_87101ba214.html","parts":"/python/html6/menu_part_index/menu_part_index_parts_909e6bf0ca.html","attributes":"/python/html6/menu_attr_index/menu_attr_index_attributes_d7f67a250d.html"}}