All YASDA's YBM series have square guide ways of solid quenching materials, and original construction which combined sliding bearing and sliding surface.

Grinding of Guide ways	Hand Scraping	The Basic is straightness	Combined Construction

In order to obtain more high-quality and durable surfaces and decrease sliding resistance by diamond’ powder lapping

Hand Scraping of Precision Center	Measuring by Autocollimator

Repetitive scraping and measurement