A file for use in forming a groove in a nut or bridge of a string musical instrument. The file includes a filing edge that is rounded to the same radius as the string to be fitted in the groove it forms in the nut and bridge. A spine or rib is formed along the upper edge of the file to provide stiffening and permitting the file to not bow or flex when being used.

A modified blade or knife that fits into a utility knife for cutting metal, wood, carpet and other materials. The blade or knife uses the utility knife body as a handle for easy, quick changing of multiple cutting edges to handle jobs that require a small tool in tight spaces without the need for power. The blades come in many common styles, fine tooth for metal, rough teeth for wood and sharp rounded blades for materials like carpet.

A modified blade or knife that fits into a utility knife for cutting metal, wood, carpet and other materials. The blade or knife uses the utility knife body as a handle for easy, quick changing of multiple cutting edges to handle jobs that require a small tool in tight spaces without the need for power. The blades come in many common styles, fine tooth for metal, rough teeth for wood and sharp rounded blades for materials like carpet.

A file for use in forming a groove in a nut or bridge of a string musical instrument. The file includes a filing edge that is rounded to the same radius as the string to be fitted in the groove it forms in the nut and bridge. A spine or rib is formed along the upper edge of the file to provide stiffening and permitting the file to not bow or flex when being used.

A file for use in forming a groove in a nut or bridge of a string musical instrument. The file includes a filing edge that is rounded to the same radius as the string to be fitted in the groove it forms in the nut and bridge. A spine or rib is formed along the upper edge of the file to provide stiffening and permitting the file to not bow or flex when being used.

A file for use in forming a groove in a nut or bridge of a string musical instrument. The file includes a filing edge that is rounded to the same radius as the string to be fitted in the groove it forms in the nut and bridge. A spine or rib is formed along the upper edge of the file to provide stiffening and permitting the file to not bow or flex when being used.

A hand operated filing tool comprising a gripping handle, an elongated shaft extending through the handle. The shaft has a first working end including at least one filing surface along at least part of the length of the first working end of the shaft and a second working end including at least one filing surface along at least part of the length of the second working end of the shaft. The shaft and handle arranged to allow the handle to move between the working ends of the shaft, thereby allowing user selection of the at least one filing surface at either the first or second working ends.

A hand operated filing tool comprising a gripping handle, an elongated shaft extending through the handle. The shaft has a first working end including at least one filing surface along at least part of the length of the first working end of the shaft and a second working end including at least one filing surface along at least part of the length of the second working end of the shaft. The shaft and handle arranged to allow the handle to move between the working ends of the shaft, thereby allowing user selection of the at least one filing surface at either the first or second working ends.

A reciprocating filing tool. The reciprocating filing tool includes a housing having a first end opposite a second end, wherein a handle is affixed to the second end. A shaft is slidably disposed within the housing, and a motor is operably connected to the shaft. The motor causes the shaft to move in a reciprocating linear movement when the motor is activated. A trigger disposed on the handle, wherein the trigger activates the motor when actuated. A plurality of files are removably securable to a distal end of the shaft. A plurality of clips are disposed on an exterior of the housing and can removably receive the plurality of files therein.

A hand rasp tool for sanding foam surfaces includes a frame having a bottom, a first end, and a second end. The tool further includes a rasp grating attached to the bottom of the frame between the first end and the second end, the rasp grating including multiple scraping teeth. The tool also includes a first shoe, having a bottom surface, attached to the first end of the frame and a second shoe, having a bottom surface, attached to the second end of the frame. The bottom surface of the first shoe and the bottom surface of the second shoe are coplanar with a tip of each of the multiple scraping teeth.