Dear Sir/Madam, Have a nice day!We would like to take this opportunity to introduce our company and products. We are a chinese factory specializing in the design,development as well as produce the commutators for more than 10 years. Our products are in competitive price with high quality.The commutator are widly used for electric tools, household appliances, automobiles and motorcycles motor etc.1.Our factory supply slot/hook/plane commutator2.ISO9001:2000 Approved3.Over speed test:30000rpm~44000rpmMore info pls view our website.Thanks! Best regards, Katrina