Koken 1 4 in Dr 17pc Z Series Socket Set Metric 4 14mm 6 pt KT3611 10R Manufactured using a 301 solid XA BLA Manufactured using a 301 solid stainless steel band 12–10 22–14 (AWG) 2286Z Koken 1 4 in Dr 17pc Z Series Socket Set Metric 4 14mm (6 pt) Made In Japan Most Dependable Compact Designed 5 14mm shorter than standard for working in confined spaces Tolerance Hexagon Opening Precisely controlled to achieve a very positive fit between bolt and socket Tolerance Square Drive Precisely controlled to achieve the most secure fit between socket and handle Ball Holding Groove This mechanism gives secure connection between socket and handle Ratchet Handle Smaller head with 36 tooth gear and light ratchet movement allows working in narrow or confined spaces