Khoom siv: HSS
Kev kho cua sov: ntsis ntu 62-65HRC
Shank: hex shank. Txhua lub shank nrog 1/4 ″ hloov ceev hex shank lossis 3/8 ″ hloov ceev.
Flute hom: ncaj flute
Drilling zoo kawg nkaus puag ncig qhov hauv cov hlau, tooj dag, tooj liab, txhuas, ntoo thiab yas.