German johs boss tools johs boss models johs boss prices

johs boss tools refer to implements used in woodworking. They generally have sharp cutting edges, so safety must be prioritized during use. Frequent sharpening is required, especially for plane blades and chisels; keeping them sharp ensures ease of use and quality workmanship, as implied by the saying "sharpening the axe does not delay the woodcutting." Woodworking tools are categorized into power tools, pneumatic tools, and hand tools. Power tools can be divided by function into multi-function tools (such as multi-tools) and single-function tools (such as electric planers, jigsaws, circular saws, sanders, and engravers); pneumatic tools include polishers and nail guns; hand tools can be divided into measuring tools, hand saws, woodworking planes, wood files, hand chisels, and sandpaper.

johs boss tool types

1) Frame saw. Also known as a buck saw, it consists of an H-shaped wooden frame, twisted rope with a toggle, and a saw blade. The ends of the saw blade are fixed to the frame with knobs, which can also be used to adjust the blade angle. After tightening the twisted rope, the blade is tensioned and ready for use. Frame saws are classified into coarse, medium, and fine types based on blade length and tooth pitch. Coarse saw blades are 650—750mm long, with a tooth pitch of 4—5mm; coarse saws are mainly used for cutting thicker lumber. Medium saw blades are 550—650mm long, with a tooth pitch of 3—4mm; medium saws are mainly used for cutting thin lumber or cutting tenons. Fine saw blades are 450—500mm long, with a tooth pitch of 2—3mm; fine saws are mainly used for cutting finer wood and cutting tenon shoulders. 2) Knife saw. A knife saw mainly consists of a saw edge and a handle, and can be classified into single-sided, double-sided, and backed knife saws. Single-sided knife saws are 350mm long, with teeth on one side; depending on the function of the teeth, they can be divided into rip cuts and crosscuts. Double-sided knife saws are 300mm long, with teeth on both sides; typically, one side is for rip cutting and the other for crosscutting. Backed knife saw plates are 250—300mm long; the back of a backed knife saw is reinforced with a steel strip, and the teeth are finer, available in rip and crosscut versions. 3) Groove saw. A groove saw consists of a handle and a saw blade, with the blade being approximately 200mm long. Groove saws are mainly used for cutting grooves in wood. 4) Panel saw. Also known as a hand saw, it consists of a handle and a saw blade. The blade is approximately 250—750mm long, with a tooth pitch of 3—4mm. Panel saws are mainly used for cutting wider boards. 5) Keyhole saw. The blade is narrow and long, with a pointed tip, and is approximately 300—400mm in length. Keyhole saws are mainly used for cutting small holes and slots. 6) Compass saw. Also known as a bow saw, its construction is similar to that of a frame saw, but the blade is narrower (approximately 10mm), and it is mainly used for cutting arcs and curves. 7) Wire saw. Also known as a bow saw, it is made by bending a bamboo strip into a bow shape and stretching a wire between the ends. Saw-tooth-like projections are formed on the wire, using their sharp edges for cutting. The wire is approximately 200—600mm long, and the saw bow is 800—900mm long. Wire saws are mainly used for cutting complex curves and openings.

johs boss tool usage

1) Select the appropriate saw blade for the workpiece. For example, use 14 teeth per inch for cutting solid or thick soft metals; use 18 teeth per inch for tool steel, iron pipes, and hard metals; and use 24 teeth per inch for cutting metal sheets, metal pipes, and thin iron bars. 2) Push forward to cut, and lift slightly when pulling back. 3) Select a wrench of the appropriate size according to the nature of the work. 4) When using an adjustable wrench, apply force toward the fixed jaw, never toward the adjustable jaw. 5) If the wrench jaws are worn or slip during use, discontinue use immediately to prevent slipping. 6) Do not use a wrench as a hammer for striking. 5) Do not slide a pipe over the wrench handle to increase torque. 7) Press the inner side of the first leg of the square against the edge of the board, and draw along the inner side of the second leg with a pencil to mark a perpendicular line. 8) Select the appropriate screwdriver based on the size and shape of the screw head slot. 9) Do not strike the screwdriver handle with a hammer; replace handles that are damaged immediately. 10) Do not use a screwdriver as a chisel or lever. 11) Use an electrician's screwdriver to test current; do not use a standard screwdriver to test high voltage. 12) Do not grind the screwdriver tip, as this may damage the hardened surface. 13) Do not carry screwdrivers in shirt or trouser pockets to avoid injury from impacts or falls.

johs boss tool usage

1) Inspect carefully before use. Ensure there is no external damage, the switch operates smoothly without sticking, and the power cord and tool housing are intact. Use a 500V megohmmeter to measure the insulation resistance between the winding and the housing; the value must not be less than O.5 megohms. Refer to the attached table for insulation resistance values. 2) Handheld power tools with metal housings must have a reliable protective ground connection. The power cord should be a multi-core soft rubber-sheathed cable, with secure connections at both ends of the ground wire. 3) Handheld power tools should be operated by dedicated personnel with appropriate professional knowledge. Strictly adhere to relevant safety operating procedures during use. 4) Before use, check that all electrical and mechanical protective devices are intact and functioning normally. Also ensure that rotating parts move freely without sticking. 5) When using Class I handheld power tools, operators must wear prescribed protective equipment and use qualified protective gear. Implement appropriate anti-electric shock safety measures as required, such as installing residual current devices (RCDs) in the power circuit, or having the operator wear insulating gloves, insulating shoes, or stand on an insulating mat. When using Class II handheld power tools in damp or confined spaces, install a residual current circuit breaker (RCCB) with an operating current of less than 1.5mA and an operating time of less than or equal to 0.1 seconds. The RCCB should be placed inside the container and monitored by dedicated personnel. 6) Occupational hazards of using handheld power tools. Arm vibration syndrome caused by long-term exposure to hand-transmitted vibration was listed as one of China's statutory occupational diseases in 1957, also known as local vibration disease, with typical symptoms including episodic white finger.

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