A depth setter tool includes a spacer having an inner diameter sized to fit around a shank of a driver bit such that the spacer can rotate about an axis passing through a center of the driver bit and independently of the driver bit. The spacer further includes an opening extending along an entire length of the spacer from a first end of the spacer to a second end of the spacer. The opening provides access to the inner diameter thereby allowing the spacer to be engaged onto the shank of the driver bit. The depth setter tool also includes a stopper. In an example, the stopper is donut-shaped and includes a compliant material that engages around the first end of the spacer.

The current invention provides apparatus and a method for use with a drill bit to form a hole in a workpiece, said apparatus including a clamping means to clamp a workpiece in which the hole is to be formed in position with the apparatus, a drill bit holder assembly and drive means for rotating the drill bit and moving the same into the workpiece so as to drill the hole at a required angle and depth into the workpiece. Typically the depth of the hole is set in relation to the thickness of the workpiece which is clamped in position at that time and the apparatus includes a first part which is held by a first hand of the user and movable by the user with respect to a second part which is held by a second hand of the user and the relative movement is translated into movement of the drill bit holder to move the rotating drill bit into the workpiece.

An assembly for translating extensions of a microstop's bit to other microstop bits, wherein the microstop has a shank, a first platen, and bit cutting end which is alternatively extendable from and retractable toward the first platen, the assembly incorporating a frame; a second platen having a port which is fitted for through extensions of the bit cutting end; a contact member; a spring biased slide shaft for positioning the contact member beneath the port at a first position, the slide shaft being adapted for, upon an extension of the bit cutting end from the first platen, engaging the contact member and moving the contact member to a second position; the assembly further incorporating a linear encoder mounted to the frame for measuring displacements of the contact member between the first and second positions.

A depth limiting device for a drill includes a main body, an axial braking structure, and a limited shrinking structure. The axial braking structure is attached to the main body. The limited shrinking structure surrounds a drill rod of the drill, is slidably attached to the main body, and is in a home position or a compressed position. The axial braking structure axially brakes the drill rod such that the drill rod moves together with the depth limiting device. When the drill rod enters into a subject, the limited shrinking structure is pressed against the subject, moves from the home position to the compressed position, and stops the drill rod from entering further into the subject.

A surgical tool assembly for forming holes in bone at precise locations and to controlled depths. The drilling tool has a leading apical tip and a shank. The shank includes an annular groove at a predetermined distance from the apical tip. An adjustable stop gauge is coupled to the shank. The stop gauge includes an indexing adapter which telescopically supports a tubular collar. The collar includes an integrated impeller that accentuates irrigation of the treatment site during surgical procedures. The adjustable stop gauge may be used in combination with a guided surgery jig. The jig includes a guide bushing having a generally semi-cylindrical alignment valley adapted to receive the spinning collar of the stop gauge. The alignment valley includes an elevated internal abutment step having a semi-annular surface adapted to engage the collar when the apical tip reaches a predetermined penetration depth in the bone.

The shank (12) of a disposable rotary cutting tool (10) comprises a pipe section (16) cut from a drawn metal pipe. The tool head (14) is formed from a cut-out (18a, 18b) of a drawn metal sheet or a section of a metal tube by non-cutting machining. The pipe section (16) and the tool head (14) are advantageously attached by force fitting.

The present invention relates to a drilling tool and method for modifying a blind hole in a blade root insert of a wind turbine. The invention further relates to an apparatus and method for cleaning a blind hole. The method for modifying a blind hole comprises: removing a blade screw located in the blind hole, inserting a drilling tool into the blind hole, fixing the drilling tool in a drill, recessing the blind hole by a predetermined depth, with a maximum diameter of the end section and of the hole bottom after recessing being smaller than or equal to a diameter of the end section prior to recessing and a transition from the end section to the hole bottom being round after recessing, removing the drilling tool and the drill, mounting the blade screw in the modified blind hole.

A self-adjusting pocket hole jig system is presented having a base, an upright assembly operably connected to the base, a clamp and drill guide assembly operably connected to the upright assembly, and an actuator assembly operably connected to the clamp and drill guide assembly. The clamp and drill guide assembly is configured to move along the upright assembly in response to movement of a handle of the actuator assembly upward and downward. Movement of the handle downward automatically adjusts the height of the clamp and drill guide assembly based on thickness of the workpiece for drilling of a pocket hole. In one or more arrangements, rotation of the handle downward from a non-clamping position to a clamping position simultaneously locks the clamp and drill guide assembly in place along the upward assembly and clamps the workpiece between the clamp and drill guide assembly and a backstop of the base.

A pocket hole jig system is formed of a plurality of jig segments, wherein each jig segment includes a main body having a drill guide and a lock feature that protrudes outward on a first side of the main body and a recess that protrudes inward on a second side of the main body. The system also includes one or more spacers that have a main body of varying width and a lock feature that protrudes outward on a first side of the main body and a recess that protrudes inward on a second side of the main body. Jig segments and spacers may be connected together by inserting the lock feature of a jig segment or spacer into the recess of an adjacent jig segment or spacer. In one arrangement opposing jig segments and/or spacers lock together with a combination of rotational movement as well as sliding movement.

A method employing an apparatus in conjunction with a hammer-drill to penetrate composite metal and non-metal structure or structures including, for example, thick metal or rebar encountered during concrete, rock or masonry boring operations without requiring a change in drill equipment.