thin wall drill

  Thin wall drill is a convenient, clean and precise tools for drilling. It mainly applies in drilling of walls,  floorslab, over striking and encrypt armored concrete, marble, granite and firebrick. It is formulated scientifically, has various kinds of basal bodies and thus makes suitable to drill materials of different hardness.
Made with advanced craftsmanship, it has the feature of high efficiency, long life performance and low cost.