Patent ID: 8113747

Claim:
A drill dust collector comprising a box having an opening in a lower surface thereof and has an opening on an upper surface thereof through which a drill is inserted, wherein a suction port for making the inner pressure of said box negative is formed in said box, being connected to the leading end of a suction hose the proximal end of which is connected to a suction apparatus, and wherein a contact member having high flexibility is provided so as to extend around the lower face of said box, wherein a partition wall for partitioning said suction port and said opening so as to make them independent from each other is provided within said box so as to circumferentially extend when viewed in plan, wherein the space located radially outside of said partition wall within said box body is divided into upper and lower spaces independent from each other by a dividing wall, wherein said partition wall is provided with a communication hole for making communication between said suction port and said opening which communication hole is located above said dividing wall, and wherein said contact member having high flexibility is provided at a lower end of said partition wall, said contact member being inclined such that a lower end of the contact member is disposed adjacent to the opening at the lower surface of the box.