Patent ID: 6120221
Filing Date: 2000-09-19
Classification: B23B,Y10S,Y10T

Abstract:
A holesaw comprising:an arbor adapted to support a pilot drill;a sawblade with a bell top and an annular sawing part attached to the top;a pin support including at least one pin;a clamping sleeve;the pin support being non-rotatable relative to the arbor but axially displaceable along a portion of the arbor;the clamping sleeve being rotatably threaded on an upper threaded portion of the arbor and concentrically enclosing the pin support with only the at least one pin projecting below an edge of the clamping sleeve to engage at least one corresponding pin hole in the bell top, the bell top being attached to a lower threaded portion of the arbor;the pin support being axially movable between an upper and a lower position within the clamping sleeve; anda spring for pressing the pin support towards the lower limiting position.