Presented here are toollessly releasable, interchangeable handles for hand tools and methods of use thereof. Hand tool users often experience discomfort and injury because hand tool handles are not well suited to each user's hands. In addition, different hand tools have different handles, so users that switch between hand tools often find a different level of comfort with different hand tools. The disclosed platform for interchangeable handles for hand tools allows a user to attach handles custom fitted to their hand to any corresponding hand tool, and likewise allows different users to share a hand tool by detaching the first user's handles and then attaching a second user's handles. Various embodiments for connecting interchangeable handles to hand tools are shown. Additionally, a fluid reservoir disposed within an interchangeable handle and locking mechanisms for keeping the interchangeable handles attached to the hand tool are disclosed.

A scalpel handle includes a receiving member to receive a blade therethrough and a main portion coupled to the receiving member. The main portion has a number of indentations on both a first surface and a second surface thereof. The indentations are evenly spaced between one another and the number of indentations extends from a first end proximate the receiving member along a first length of the main portion across an entire width thereof. The first length is at least two-thirds of a second length of an entirety of the main portion. The width of the main portion is at least five times a maximum width of the receiving member. A thickness of the main portion is at least 2.5 times a maximum thickness of the receiving member. All outer surfaces of the main portion including the first surface and the second surface are convex in shape around edges thereof.

A reconfigurable modular brush has a brush head including brush-head upper and lower surfaces extending longitudinally along a brush-head axis between brush-head first and second ends. Laterally opposed brush-head first and second sides extend between the brush-head upper and lower surfaces and longitudinally between the brush-head first and second ends. A bristle array is defined by a plurality of bristles protruding from the brush-head lower surface. A brush handle includes a grip portion and a brush-head mount, the brush handle having a lengthwise extent disposed generally along a handle axis between handle proximate and distal ends. The brush head and brush-head mount are cooperatively configured such that the handle can selectively capture and retain the brush head. Moreover, the longitudinal orientation in which the brush head is captured and retained by the brush handle is selectively reversible.

Rotatable handles and related methods are disclosed herein. In one form, the handle has a clip member that fits around a cylindrical object and a handle. The clip member includes a track that guides rotation of the handle about a longitudinal axis of the cylindrical object. The handle includes an actuator that operates a braking member which comprises a braking surface that is movable into and out of contact with the track. When the braking surface is out of contact the track, the handle is movable relative to the track when permitting the handle to rotate about a longitudinal axis of the cylindrical object. Rotating the handle about the longitudinal axis of the handle operates the actuator, causing the braking surface to move into and out of contact with the track. Various methods are also disclosed herein with respect to the rotatable handle.

Rotatable handles and related methods are disclosed herein. In one form, the handle has a clip member that fits around a cylindrical object and a handle. The clip member includes a track that guides rotation of the handle about a longitudinal axis of the cylindrical object. The handle includes an actuator that operates a braking member which comprises a braking surface that is movable into and out of contact with the track. When the braking surface is out of contact the track, the handle is movable relative to the track when permitting the handle to rotate about a longitudinal axis of the cylindrical object. Rotating the handle about the longitudinal axis of the handle operates the actuator, causing the braking surface to move into and out of contact with the track. Various methods are also disclosed herein with respect to the rotatable handle.

A paintless dent repair kit includes a housing with a handle extending therefrom and a toothed wheel rotatably retained in the housing. The toothed wheel has a plurality of teeth extending outwards therefrom and is configured to receive, replace, and removably retain a connector, which is attached on the other end to a quick-connect coupling. The quick-connect coupling is, in turn, configured to releasably retain a socket of a commercially-available set of dent removal tips, for example, a KIPP socket or an ULTRA socket. The housing features a first button connected to a teethed lever slidably positioned to be either engaged or disengaged with the plurality of teeth of the toothed wheel depending on the position of the first button. Unless the first button is depressed, the dent removal tool is configured to securely and fixedly retain the dent removal tip to facilitate direct transmission of force and torque from the handle to the coupling and then to the dent removal tip during dent removal operations.

A paint roller assembly for allowing a sufficient amount of pressure to be applied for distributing paint evenly is disclosed. The paint roller assembly includes a pair of frame members. One frame member includes a handle. A cylindrical-shaped core is attached to another end of each of the frame members. In one aspect, the pair of frame members are coupled to each other at a first end by a variety of different coupling mechanisms. When assembled, a central, longitudinal axis of the handle is substantially parallel to a central, longitudinal axis of the cylindrical-shaped core, thereby allowing the user to apply sufficient pressure to more evenly distribute paint during use.

A contour-adjustable toothbrush is a device that provides a more thorough brushing experience while eliminating the need to remove the device from the mouth during brushing. A first brushing assembly and a second brushing assembly are slidably engaged into a housing handle that may be grasped by the user. The first brushing assembly and the second brushing assembly each include a flexible brush head with a concave surface. The concave surface of the first brushing assembly is oriented away from the concave surface of the second brushing assembly, enabling the first brushing assembly and the second brushing assembly to clean the upper teeth and lower teeth simultaneously. The first brushing assembly and the second brushing assembly are independently adjustable in order to adjust the length of the device. An electronic variant of the device includes a power supply and at least one actuator.

A massage gun and a massage gun extension arm having a handle end that can extend through a first bend and further extend to terminate at an attachment end. Various attachment mechanisms may be used to connect the massage gun extension arm to the massage gun, or to a separate massage tool. The massage gun extension arm can include a telescoping adjustment along the portion between the bend and the handle end, or between the bend and the attachment end. In some embodiments, the arm, between the bend and the handle end, can include a disconnection, the disconnection being in the form of a pivoting bend or in a complete disconnection of parts. This disconnection allows for ease of transport, with the massage gun extension arm stored and carried in a relatively small footprint.

A concrete float, float assembly, float adapter and interface, and float vibration apparatus and methods are described. A concrete float has improved surfaces, and structures for controlling flow of wet concrete. An interface such as may be included in a quick attach/release configuration may be integrated on a float, and/or may be added onto a float for quick attach/release of a pivot assembly. Adapters may ease attachment or release of an assembly, and may be an interengaging element, such as a sliding dovetail as an interengaging element, or an adapter may be used to place an assembly in tension to secure the assembly. A vibration assembly may be included and configured to have a low center of mass, can have a user display, an accelerometer, and/or other components. A pivot assembly may be included for easier use by an operator, and may include a user display, quick release mechanisms.