Power tool having a receptacle for securing a tool

A power tool comprising

• a motor-driven drive shaft having a longitudinal axis and having a free end;
• a securing section provided on said free end of said drive shaft for engaging a receiving opening provided on said tool;
• said securing section comprising a cylindrical section from which protrude to the outside a plurality of rounded tips arranged at equal radial distances from said longitudinal axis, at equal angular intervals between each other, each rounded tip having a pair of lateral flanks extending from said rounded tip and ending in said cylindrical section.

A tool comprising a receiving opening defining a longitudinal axis extending there through, said receiving opening comprising eight bulges arranged at a radial distance from said longitudinal axis, said bulges being connected by lateral flanks forming recesses between said bulges.

A tool comprising a working section and a holding section, said holding section having a receiving opening defining a longitudinal axis extending there through, said receiving opening being configured for attachment to an end of a drive shaft of a motor-driven power tool, said holding section having a surface facing said end of said drive shaft, said holding section on its surface facing the drive shaft further comprising a coating comprising a friction enhancing material.

A tool comprising a working section and a holding section, said holding section having a receiving opening defining a longitudinal axis extending there through, said receiving opening being configured for attachment to an end of a drive shaft of a motor-driven power tool, said receiving opening comprising eight rounded tips arranged at a radial distance from said longitudinal axis, said rounded tips being connected by lateral flanks forming recesses between said tips.

An adapter for securing a tool having a holding section comprising a receiving opening to a securing section of a drive shaft of a power tool, said adapter comprising:

• an adapter disk comprising a longitudinal axis and having a first side facing said power tool and a second side facing said tool;
• a recess arranged on said first side, and having a certain shape for engaging said securing section of said power tool;
• a raised section arranged on said second side, said raised section having a shape being different from the shape of said recess, said raised section comprising a cylindrical section from which at least three rounded tips arranged at even angular intervals between each other protrude to the outside.

An adapter for securing a tool having a holding section comprising a receiving opening to a securing section of a drive shaft of a power tool, said adapter comprising:

• an adapter disk comprising a longitudinal axis and having a first side facing said power tool and a second side facing said tool;
• a recess arranged on said first side, and having a certain shape for engaging said securing section of said power tool;
• a raised section arranged on said second side, said raised section having a shape being different from the shape of said recess, said holding section on its surface facing the drive shaft further comprising a coating comprising a friction enhancing material.

An adapter for securing a tool having a receiving opening to a securing section of a drive shaft of a power tool, said adapter comprising:

• an adapter disk comprising a longitudinal axis and having a first side facing said power tool and a second side facing said tool;
• a recess arranged on said first side, and having a certain shape for engaging said securing section of said power tool;
• a raised section arranged on said second side, said raised section having a shape being different from the shape of said recess, said raised section comprising a cylindrical section from which at least three rounded tips arranged at even angular intervals between each other protrude to the outside.