型号
回转方向
最小单位
3:1–4H1
右
1M
3:1–4H2
左
3:1–5 H1
3:1–5 H2
3:10–4 H1
10㎝
3:10–4 H2
3:10–5 H1
3:10–5 H2
3:100–4 H1
1㎝
3:100–4 H2
3:100–5 H1
3:100–5 H2