• Niigata Seiki Johnson Block Gauge Set GBS1-103, GBS1-76, GBS1-47, GBS1-32
 • Ideal for general measuring needs and as a reference gauge in the workplace
 • Can be used as an auxiliary mounting part
 • High carbon chromium steel
 • High surface quality and resistance
 • Complies with JIS (Grade 1) Standard
 • Section size: Less than 10mm: 30（0～－0.3）×9（－0.05～－0.2）mm More than 10mm: 35（0～－0.3）×9（－0.05～－0.2）mm