2 SET（SAVE $5）

No need to add water, you can drill to the bottom in one click. Universal various materials, efficient drilling.   Main Features HIGH-QUALITY MATERIALSIt is made of high quality YG6X alloy as raw material. The process of oxynitriding of the cutter head strengthen the drill hardness. SURFACE ELECTROPHORETIC PAINT PROCESSFull-grinding…