Abstract: An object of the present invention is to provide a dust collecting cover for a grinding cup wheel having both excellent practicality and versatility. A base plate is joined to a body of the dust collecting cover via elastic bodies at a plurality of positions, an adapter for joining an angle grinder is attachably/detachably provided on the base plate, and a portion of the body cover is formed as a sub-cover openable/closable utilizing a magnetic force of a magnet, and the sub-cover is configured to be fastenable to the body cover by a screw inserted via a through hole provided in the magnet into a female screw part provided on the body cover side.

Abstract: There is provided a low vibration-type saw blade including a circular steel substrate having a center hole at a central portion thereof, a super abrasive grain layer which includes diamond abrasive grains or CBN abrasive grains and is continuously formed to an outer periphery edge of the steel substrate, and a pair of male and female flanges which are made of a fiber reinforced plastic and have an attachment hole to an electric tool spindle at a central portion, and which are integrally provided on a substantial half part of the steel substrate in a direction toward an outer periphery thereof through the center hole provided at the center portion of the steel substrate such that the male and female flanges sandwich the steel substrate from both side faces thereof.

Abstract: A cutting tool in which a disc-like cutter blade is fixed to a spindle of a rotary electric tool, comprising a first guide plate, which is attached on electric tool side to a cutter blade such that it is capable of rotating freely and makes contact with the reference surface of a cutting object material on a process of cutting progress so as to guide along a cutting direction, an inner flange located between the first guide plate and the cutter blade so as to specify a distance X from the reference surface of the cutting object material to a cut groove and a second guide plate which is provided on an opposite side to the electric tool side of the cutter blade and makes contact with a cut face of the cutting object material on a process of the cutting progress so as to stop moving in the cutting direction to specify a cut groove depth Y.

Abstract: A constant angular grinding tool comprising: a profile wheel whose grinding face is fixed at an inclination angle with respect to the axis of a spindle of a rotary electric tool; a first guide plate which is a disc member attached rotatably to a spindle between the profile wheel and the rotary electric tool so as to guide for a grinding direction by bringing the edge of the disc member into a contact with the reference level of a material; and a second guide plate which is a disc member attached rotatably to a spindle between the profile wheel and the first guide plate and whose outer peripheral end face makes contact with the edge of the material to control a grinding distance from the edge.

Abstract: A pair of profile wheels 14, 18 in which concavely shaped grinding surfaces 141, 181 asymmetrical to each other are opposed to each other at right angle so as to form a concavely shaped grinding surface having a substantially semi-circular section, a guide plate 13 which is mounted on a spindle 11 of an electric or air tool side of the profile wheel 14 freely rotatably for guiding a grinding direction by bringing the edge of the circular shaped member into contact with a reference face of a grinding object material and a stopper ring 16 which is mounted to a spindle between the pair of the profile wheels 14 and 18 freely rotatably for controlling a grinding distance Y from the edge by bringing its outer peripheral end face 161 into contact with the edge of the grinding object material, are fixed to the spindle 11 with a lock nut such that they are set at right angle to the spindle.

Abstract: A pair of profile wheels 14, 18 in which concavely shaped grinding surfaces 141, 181 asymmetrical to each other are opposed to each other at right angle so as to form a concavely shaped grinding surface having a substantially semi-circular section, a guide plate 13 which is mounted on a spindle 11 of an electric or air tool side of the profile wheel 14 freely rotatably for guiding a grinding direction by bringing the edge of the circular shaped member into contact with a reference face of a grinding object material and a stopper ring 16 which is mounted to a spindle between the pair of the profile wheels 14 and 18 freely rotatably for controlling a grinding distance Y from the edge by bringing its outer peripheral end face 161 into contact with the edge of the grinding object material, are fixed to the spindle 11 with a lock nut such that they are set at right angle to the spindle.

Abstract: A constant angular grinding tool comprising: a profile wheel 18 whose grinding face 181 is fixed at an inclination angle X with respect to the axis of a spindle of a rotary electric tool; a first guide plate 13 which is a disc member attached rotatably to a spindle between the profile wheel 18 and the rotary electric tool so as to guide for a grinding direction by bringing the edge of the disc member into a contact with the reference level of a material; and a second guide plate 16 which is a disc member attached rotatably to a spindle between the profile wheel 18 and the first guide plate and whose outer peripheral end face makes contact with the edge of the material to control a grinding distance Y from the edge.

Abstract: A cutting tool in which a disc-like cutter blade 15 is fixed to a spindle 11 of a rotary electric tool, comprising a first guide plate 13, which is attached on electric tool side to a cutter blade 15 such that it is capable of rotating freely and makes contact with the reference surface of a cutting object material on a process of cutting progress so as to guide along a cutting direction, an inner flange 14 located between the first guide plate 13 and the cutter blade 15 so as to specify a distance X from the reference surface 75 of the cutting object material 70 to a cut groove 72 and a second guide plate 17 which is provided on an opposite side to the electric tool side of the cutter blade 15 and makes contact with a cut face 75 of the cutting object material 70 on a process of the cutting progress so as to stop moving in the cutting direction to specify a cut groove depth Y.

Abstract: An offset type grindstone having a circular metal substrate provided in a central section thereof with a recess having a hole used to mount the grindstone on a power tool, and a grindstone portion including one layer of either diamond grains or CBN grains and formed in one body so as to extend continuously in the direction of an outer circumference of a front surface of the recess, in which grindstone the concentration of the grains on the grindstone portion is set high in a region of an outer circumferential end section thereof, and low in the other region thereof. This grindstone is superior in lifetime with a very high grinding speed and a high flat grindability attained at once.

Abstract: A diamond blade S includes a blade portion 2a formed of diamond abrasive grains and fixed to a base plate 1 along the outer circumferential edge thereof. Isolated cutting elements 2b are provided on at least a front or reverse face of the base plate 1 such that the isolated cutting elements 2b are separated from the blade portion 2a fixed along the outer circumferential edge.

Abstract: There is provided a mounting member to be detachably screwed onto the rotary shaft of a power tool, and during the attachment and detachment of the mounting member to and from the power tool, a part for clamping and integrally securing a rotary cutter between an inner flange and an outer flange which functions as a lock nut is constructed by fitting a claw of the inner flange onto a fitting groove formed in the outer flange. Owing to this construction, it is possible to highly precisely and integrally secure the mounting member to individual rotary cutters.

Abstract: An electrodeposited diamond wheel including a circular substrate having an attaching aperture formed at the center and a plurality of cooling apertures each formed at a predetermined distance from the attaching aperture in the outer circumferential direction and each at a predetermined pitch. Diamond abrasive particles are electrodeposited on the outer circumference of the circular substrate. Ridges and grooves are formed as corrugations on both surfaces of the circular disc, and diamond abrasive particles are electrodeposited on the outer circumference of the corrugations to form a cutting edge, the cutting edge being formed into a corrugated shape conforming to the substrate. The diamond wheel is suitable for cutting of a composite material of a heat-softening material and a reinforcing material.