chamber extending down surrounding the chuck 51 of the drill 5 tailpiece 14 has concentric outer tubular wall 42 co axial with inner tubular wall 44 outer tubular wall 42 and inner tubular wall 44 are joined at a lower closed end by a base disk 46 the upper end of inner tubular wall 44 is closed by a disk to form a closed or upper surface 45 which is pierced by a working component passage hole 48 the entire closed tailpiece assembly 14 with passage hole 48 is fixed preferrably by j threads 15 to the lower end of the bellows 12 passage hole 48 is sufficiently large so that no contact is made with the drill bit 50 and thus no rotary motion is imparted to the debris catcher 10 passage hole 48 is typically 11 8 inch in diameter however since some working components 4 are considerably smaller than this i provide a centering disk 64 which may be snap fit into passage hole 48 to close down the diameter of the hole to typically 9 16 inch i then seal off and enclose the working component 4 for illustration drill bit 50 by providing as an interfitting component of tailpiece 14 a captive freely rotating spinner disk 60 which is shaped as a tubular cylindrical disk to match the inner shape of tailpiece 14 and which forms a rotatable inner wall of the chip chamber 40 spinner disk 60 covers the closed upper surface 45 extends downward over inner tubular wall 44 and then extends out to at least cover the base disk 46 it may optionally extend up to cover a portion of the.