Patent ID: 7810817

Claim:
In a holder for replaceable tools, the improvement comprising: a body having an elongated axis with an opening extending along said axis for snugly receiving a work tool inserted axially into said opening and with said body having a hole extending through said body to said opening, a circular member on said body and being axially movable relative to said body along said axis and having a camming ramp facing said opening and being disposed radially outward with respect to said hole, a ball disposed in said hole and being in respective contact with said camming ramp and exposed to said opening and being positionable into contact with the work tool for effecting a first radially directed axially inward force on the work tool and for effecting an axial holding force on the work tool, a spring for urging said member axially and thereby urge said ball into its contact with the work tool for holding the work tool in said body, the work tool having an arcuate recess for receiving said ball for effecting the axial holding force on the work tool, said circular member having a cylindrical surface adjacent to said camming ramp and facing toward said axis and extending coaxially relative to said axis and being circularly disposed for confining said ball in said arcuate recess upon axial movement of said circular member to a position where said ball is free of being disposed in contact with said camming ramp and thereby further axially have said ball hold the work tool, and said circular member having an additional camming ramp and an additional cylindrical surface in line with each other and disposed axially adjacent the first-mentioned said cylindrical surface and being radially spaced further out than that of said first-mentioned camming ramp and said first-mentioned cylindrical surface for freeing said ball relative to the work tool upon axial movement of said member and thereby free the work tool relative to said body, said body having a protrusion radially extending into said opening at a location axially spaced from the axial location of said detent and facing said axis for forcing onto the work tool in a second radially directed axially inward force in a direction counter to that of the radial direction of said first force and thereby have two radially directed forces at two respective axially spaced-apart locations on the work tool, and said body having a second hole extending into said opening at a location diametrically opposite the location of said protrusion for access to said protrusion by a forming tool for forming said protrusion.