Official Answer
Answer
'Groove Rolling' ibaho mugihe umutwaro wo gutera utera urukuta rwa ruhago guhinduka muburyo bwa plastiki, bigakora igitereko cyemerera impeta iguma hanze. Ibi biterwa cyane na 'Squareness' igice cyagumishijwe. Niba isura yigice cyagumanye itari kare kuri shaft axis, ikoresha umutwaro udahuje impeta. Ibi birema umwanya uhengamye (torque) yibanda ku mbaraga kuruhande rumwe rwa groove. Izi mpungenge zaho zirenze imbaraga zumusaruro wibikoresho byamazu vuba cyane kuruta umutwaro umwe wabikora. Isesengura ryananiranye ryerekana 'inkonjo' cyangwa 'yaka' inkombe. Kwirinda bikubiyemo kwemeza ko igice cyo guhuza isura ari perpendicular muri $ 0.002 $ santimetero imwe ya diameter.
