Ibi birumbo byiringirwa biraboneka muburyo butandukanye bwo gushiraho uburyo bwo kwiyongera bubafasha byoroshye kwizirika, gukinisha-spie-spaer batwara na reberi-ananiwe. Imikorere yimikorere hamwe nuburyo bwo kwiyongera bituma aba hammers bafite intego yo gutegura urubuga, gukuraho umuhanda, gusana umuhanda, inzira nyabagendwa nikirahure cyangwa umunyamaguru.