結(jié)構(gòu)特點(diǎn)：
1. 走刀行程大，提高了加工效率；
Big feeding distance, improve work efficiency.
2. 鏜桿采用特種熱處理方法，硬度高，剛性好，有效地保證了加工精度；
Hardened spindle, give high hardness and good rigidity.
Improve the working accuracy.
3. 傳動(dòng)結(jié)構(gòu)采用無級(jí)調(diào)速，適用于不同孔徑及材質(zhì)的加工；
Stepless speed suitable for different hole and materials.
4. 配有專用量具，既方便快速加工，又保證了加工精度。
Special measuring gauge can improve working efficiency
and working accuracy.