German NT CUTTER tools, NT CUTTER models, NT CUTTER prices

NT CUTTER tools, also known as hand tools, are distinguished from power tools. They primarily rely on manual force to operate or apply torque. Hand tools are categorized by application into wrenches, pliers, screwdrivers, tape measures, hammers, sockets, cutting tools, scissors, tool sets, and auxiliary items such as tool trolleys, with each category having different models. Wrenches include open-end wrenches (fixed wrenches), double box-end wrenches, ratchet wrenches (quick wrenches), combination wrenches, pipe wrenches, T type socket wrenches, cross socket wrenches, and adjustable wrenches; pliers include wire cutters, needle-nose pliers, diagonal cutters, snap-ring pliers, slip-joint pliers, water pump pliers, pipe wrenches, and locking pliers; screwdrivers include slotted, Phillips, Pozidriv, hex, and Torx types; sockets are divided into standard sockets, Torx sockets (E type sockets), bit sockets (BIT sockets), spark plug sockets, and impact sockets. Common drive sizes are 1/4", 3/8", and 1/2", where " denotes inches; each size is further divided into 6-point sockets and 12-point sockets; hammers include claw hammers, machinist hammers, ball-peen hammers, rubber mallets, and installation hammers; cutting tools include files, diamond files, tin snips, aviation snips, utility knives, square tube saws, pipe cutters, and cable cutters; materials include chrome vanadium steel, carbon steel, and alloy steel.

NT CUTTER tool types

1) Frame saw. Also known as a buck saw, it consists of an H-shaped wooden frame, twisted rope, turnbuckle, and saw blade. The ends of the saw blade are fixed to the frame with knobs, which can 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) Back saw. A back saw mainly consists of a saw blade and a handle, and can be single-sided, double-sided, or backed. Single-sided back saws have a blade length of 350mm, with teeth on one side; depending on the tooth function, they are divided into rip cuts and cross cuts. Double-sided back saws have a blade length of 300mm, with teeth on both sides; typically, one side is for rip cuts and the other for cross cuts. Backed saws have a blade plate length of 250—300mm; the back of the blade is reinforced with a steel strip, featuring finer teeth, and are available as rip or cross cut saws. 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, with the blade being approximately 250—750mm long and 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 a length of approximately 300—400mm. Keyhole saws are mainly used for cutting small holes and slots. 6) Coping saw. Also known as a fret saw, it has a similar construction to a frame saw, but the blade is narrower (approximately 10mm), and 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, with wire stretched between the ends; serrated edges are formed on the wire to perform the 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.

NT CUTTER tool structure and composition

The function of power components is to convert the mechanical energy of the prime mover into hydraulic pressure energy. This refers to the oil pump in a hydraulic system, which provides power to the entire system. Hydraulic pumps generally come in gear pump, vane pump, and piston pump configurations. Actuators (such as hydraulic cylinders and hydraulic motors) convert hydraulic pressure energy into mechanical energy, driving loads in linear reciprocating or rotary motion. Control components (i.e., various hydraulic valves) control and regulate the pressure, flow, and direction of the fluid in the hydraulic system. Based on control functions, hydraulic valves are divided into pressure control valves, flow control valves, and directional control valves. Pressure control valves include relief valves (safety valves), reducing valves, sequence valves, and pressure relays; flow control valves include throttle valves, adjustment valves, and flow divider/combiner valves; directional control valves include check valves, pilot-operated check valves, shuttle valves, and directional control valves. Based on control methods, hydraulic valves are divided on/off valves, fixed-value control valves, and proportional control valves. Auxiliary components include oil tanks, oil filters, oil pipes and fittings, sealing rings, pressure gauges, and oil level/temperature indicators. Hydraulic oil is the working medium that transmits energy in hydraulic systems, including mineral oils, emulsions, and synthetic hydraulic fluids.

NT CUTTER tool usage

1) Before use, carefully inspect the tool to ensure there is no external damage, the switch operates smoothly without sticking, and the power cord and housing are intact. Use a 500V V megohmmeter to measure the insulation resistance between the winding and the housing; the value must not be less than O.5 MΩ. 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 the ground protection wire securely connected at both ends. 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 related 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 compliant 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 a operating current of less than 1.5mA and an operating time of ≤ 0.1 seconds. The RCCB should be placed inside the container and monitored by dedicated personnel. 6) Occupational hazards associated with 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, typically manifesting as episodic white finger.

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