This list includes 34 Tools that start with J, from “J-bar” to “Junior hacksaw”. These entries are mostly handheld or small power items used for cutting, fastening, measuring, and finishing in workshops.

Tools that start with J are instruments whose common names begin with J and help you perform practical tasks. Historically, many J-named tools come from old trade words; “jack” appears across lifting and holding devices.

Below you’ll find the table with Tool, Purpose, Primary materials, and Typical users.

Tool: The exact name of the item, so you can find variants, buy parts, or search for detailed specs quickly.

Purpose: Short description of what the item does, helping you choose the right tool for a task or project.

Primary materials: Lists common construction materials, so you know durability, weight, and maintenance needs at a glance.

Typical users: Shows who regularly uses the tool, helping you match tools to skill level, trade, or hobby.

Tools that start with J

NameTool typePrimary materialsTypical users
JackHand toolSteel, cast iron, hydraulic componentsDIYer, mechanic, auto technician
Jack planeHand toolSteel blade, wooden or metal bodyCarpenter, woodworker, DIYer
Jointer planeHand toolSteel blade, wooden or metal soleCarpenter, woodworker
JointerWorkshop machineCast iron, steel cuttersWoodworker, cabinetmaker
JigsawPower toolSteel blade, plastic or metal housingDIYer, carpenter, electrician
Japanese sawCutting toolHigh-carbon steel blade, wooden handleCarpenter, woodworker, DIYer
Jeweler’s sawCutting toolFine steel blade, metal frameJeweler, metalsmith, hobbyist
Jeweler’s loupeMeasurement toolOptical glass, metal or plastic bodyJeweler, watchmaker, hobbyist
Jeweler’s hammerHand toolSteel head, wooden handleJeweler, metalsmith
Jab sawCutting toolSteel blade, plastic or rubber handleDrywaller, carpenter, DIYer
JigHand toolWood, aluminum, steel, plasticWoodworker, metalworker, DIYer
Jig borerWorkshop machineCast iron, steel spindleMachinist, toolmaker
Jig grinderWorkshop machineCast iron, grinding wheel, spindleMachinist, toolmaker
Jib craneWorkshop machineSteel, bearingsWarehouse worker, fabricator, mechanic
JackhammerPower toolSteel chisel, pneumatic or electric driveDemolition worker, contractor
Jamb sawPower toolSteel circular blade, electric motorCarpenter, door installer
Jamb planeHand toolSteel blade, wooden bodyCarpenter, door installer, woodworker
Jar openerHand toolRubber, plastic, metalHomeowner, cook, caregiver
Jumper cablesHand toolCopper conductors, insulated PVCMotorist, mechanic
Jump starterPower toolLead-acid or lithium battery packMotorist, mechanic
Jaw pullerHand toolForged steelMechanic, machinist, DIYer
Jaw clampHand toolSteel, cast iron, plastic padsWoodworker, metalworker, DIYer
Joggle pliersHand toolForged steel, insulated or rubber handlesSheet metal worker, HVAC tech
Junior hacksawCutting toolSteel frame and bladePlumber, electrician, DIYer
Jointing knifeHand toolStainless steel blade, plastic handlePlasterer, drywaller, painter
Joiner’s malletHand toolHardwood or rawhide head, wooden handleCarpenter, woodworker
Joist jackHand toolSteel screw or hydraulic mechanismCarpenter, framer, contractor
J-barHand toolForged steelDemolition worker, mover, installer
Jump ring pliersHand toolHardened steel, cushioned gripsJeweler, hobbyist
Jeweler’s fileHand toolHardened steel, various cutsJeweler, metalsmith, hobbyist
Jeweler’s torchPower toolBrass, gas fittings, flame tipJeweler, metalsmith
JackscrewHand toolSteel screw, cast bodyMechanic, fabricator
Jeweler’s viseHand toolSteel, cast iron baseJeweler, metalsmith
J-clampHand toolForged steelWelder, metalworker, woodworker

Descriptions

Jack
Portable lifting device used to raise vehicles or heavy equipment for repair or maintenance available as scissor, bottle, and floor jacks rated in tons.
Jack plane
General-purpose bench plane about 12–15 in long for smoothing, truing, and dimensioning boards before finishing or joinery.
Jointer plane
Extra-long hand plane (often 22–30 in) for straightening and flattening board edges to produce tight joints.
Jointer
Bench machine with a rotating cutterhead to flatten and square lumber faces and edges for millwork and furniture.
Jigsaw
Versatile saw with a reciprocating blade for cutting curves and straight lines in wood, plastic, and thin metal.
Japanese saw
Pull-stroke hand saw with a thin kerf used for precise joinery and finish cuts available in ryoba, dozuki, and kataba styles.
Jeweler’s saw
Frame saw for delicate internal and external cuts in thin metal, wood, and plastic used in jewelry and model work.
Jeweler’s loupe
Small high-magnification loupe for inspecting gemstones, metalwork, watch parts, and fine surface details.
Jeweler’s hammer
Lightweight precision hammer for shaping, planishing, and forming metal without heavy impact.
Jab saw
Pointed saw for cutting drywall, plasterboard, and creating openings for outlets and small boxes.
Jig
Fixture or guide that holds and guides a tool or workpiece for repeatable accurate cuts, holes, or joinery.
Jig borer
Precision machine for accurately locating and drilling holes used in jigs, dies, and precision tooling.
Jig grinder
Machine for high precision grinding of holes and surfaces often used to finish jig bores and complex tooling.
Jib crane
Pivoting overhead crane that lifts and repositions heavy loads within a limited radius in shops and bays.
Jackhammer
High impact tool for breaking concrete, asphalt, and rock in demolition and heavy construction tasks.
Jamb saw
Compact circular saw designed to trim door jambs and casings in place for fitting doors and flooring.
Jamb plane
Narrow plane for trimming door jambs and casing to fit doors or adjust reveals in tight spots.
Jar opener
Simple leverage or grippy tool to open tight jar lids and bottles for users with limited hand strength.
Jumper cables
Heavy gauge cables used to connect a donor battery to a dead battery to start a vehicle.
Jump starter
Portable battery pack that jump-starts vehicles without another car often including USB ports and emergency lights.
Jaw puller
Tool with adjustable jaws for removing gears, pulleys, and bearings from shafts without causing damage.
Jaw clamp
Clamp with wide jaws for holding irregular or fragile workpieces securely during gluing or machining.
Joggle pliers
Pliers that form offsets or joggles in sheet metal to create clean seams and overlaps.
Junior hacksaw
Compact hacksaw for cutting small metal pipes, bolts, and trim in confined spaces.
Jointing knife
Flexible wide blade for spreading joint compound, smoothing plaster, and finishing drywall seams.
Joiner’s mallet
Mallet used to strike chisels and assemble joints without marring or damaging wooden surfaces.
Joist jack
Adjustable jack for lifting and holding floor joists during installation or leveling tasks.
J-bar
Short J-shaped pry bar used for prying, lifting floorboards, removing nails, and pulling trim in tight spaces.
Jump ring pliers
Small pliers for opening and closing jump rings used in jewelry assemblies and chain repairs.
Jeweler’s file
Small precise files for shaping, smoothing, and finishing metal and gemstone settings.
Jeweler’s torch
Handheld gas torch used for soldering, annealing, and small metalwork at controlled heat levels.
Jackscrew
Screw-based lifting device for fine controlled lifting or clamping of heavy components in rigs and assemblies.
Jeweler’s vise
Small bench vise for holding jewelry pieces and small components securely during filing, soldering, and assembly.
J-clamp
J-shaped clamp that applies pressure in tight or irregular spaces for welding, fabrication, and assembly.
If you think there is a missing term, let us know using the contact form.