Mīhini Mira Mutunga HSS Countersink

He taputapu maha ngā mahi a ngā mira pito HSS (High Speed ​​​​Steel) mō te miihini i ngā kōhao poka i roto i ngā momo rauemi. Ko ētahi o ngā āhuatanga matua o ēnei maripi ko:

1. Hanganga maitai tere-teitei.

2. Hoahoa maha-putorino.

3. Ngā mahi maha

4. Te tino tika.

5. Hototahitanga.

I te nuinga, he taputapu pono, he taputapu whai hua hoki ngā mira pito totohu HSS mō te hanga i ngā kōhao totohu tika, ma, i roto i ngā momo rauemi.