Specification Brand : ZYLTECH BulletPoint1 : Three pack stepper motor kit for more saving BulletPoint2 : High torque motor for 3D printer and CNC BulletPoint3 : Precisely machined full metal body BulletPoint4 : High quality black powder paint BulletPoint5 : "D" shaft for easy and secure coupler connection BulletPoint6 : PLEASE NOTE: The thick black wire can be used for shielding, but it is not required, so you can leave it unconnected BulletPoint7 : Suit for 3D printer/CNC machine/Carving Machine/Dispenser/Automation Application BulletPoint8 : 100% service satisfactory. We provided this stepper motor kit with 30 days free replacement or refund, 1 year warranty and whole life customer service from the date of purchasing. CustomerPackageType : Standard Packaging ExternallyAssignedProductIdentifier1 : 718207242603 ExternallyAssignedProductIdentifier2 : 0718207242603 Horsepower : 1000 unknown_modifier IncludedComponents : Nema 23 Stepper Motor ItemName : Zyltech 3 Pack Nema 17 Stepper Motors 1.5 A 0.42 Nm 59 oz.in 40mm Body w/ 1m Cable & Connector for 3D Printer/CNC ItemPackageDimensions_Height : 21.336 centimeters ItemPackageDimensions_Length : 7.874 centimeters ItemPackageDimensions_Width : 9.398 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : 3d-printer-motors Manufacturer : Zyltech Engineering LLC Material : Carbon Steel ModelName : gear ModelNumber : Nema23 NumberOfItems : 1 PartNumber : 17HD40002H-22B ProductDescription : Shaft diameter 5mm; Shaft length 20mm Motor body length 40mm, full length 62mm; weight 280g Step Angle 1.8° Step Accuracy 5% Holding Torque 0.42N·m (59oz·in) Rated Current/phase 1.5 A Phase Resistance 1.6 ohms Rated Voltage (≠driving voltage) 2.4 V Inductance 3.8 mH ±20% ProductSiteLaunchDate : 2016-06-06T01:20:41.895Z Size : 2.25x2.25x3.94 inch Speed : 4000 rpm SupplierDeclaredDgHzRegulation : not_applicable UnspscCode : 26111500 Voltage : 24 volts