Tools / Test Equipment / Fixtures and Probes

A plastic divider container filled with black nylon stand-offs, screws, and nuts.

In this category you will find random, but useful products that will help you build up a test jig. Our favorite toggle clamps are used to clamp a board in place over Pogo pins. Or make testing a lot easier by picking up a pack of the PCB test points, snap them into your board, and attach your test probes.

Many of the items in this category are used every day at Adafruit HQ.

  • Pogo Pin Probe Clip - 6 Pins with 2.54mm / 0.1" Pitch

    Product ID: 5433
    The Pogo Pin Probe Clip with 6 pins in a 2.54 / 0.1" pitch spacing is a great way to test and connect with pin-point accuracy without soldering! It's sort of like an alligator clip with an array of built-in springy pogo pins - so you can connect to a PCB with classic 0.1" spaced pad holes, without soldering or a special adapter cable. The clip is constructed from PCB...
    $10.95
    58 in stock
  • Fixture Clip - Short

    Product ID: 2458
    Doesn't this fixture clamp look like a character in a Pixar movie? If you just drew two little eyes on it then you could just imagine it hopping around on nifty, adorable little adventures that are heartwarming and...sorry, we got carried away. This fixture clamp is a great way to hold a printed circuit board in place while you're testing or programming. It comes...
    $0.95
    In stock
  • Toggle Clamp - Large Size - 201B

    Product ID: 2457
    *Ka-thunk* Pin down that PCB with our Toggle Clamp, a sturdy and reliable way to quickly press and release with precision! A pogo-pin bed is a great way to connect and test boards without any soldering, but you have to somehow get that PCB aligned right and evenly pressed down on each pogo. After much experimenting, we settled on this toggle clamp and we use it all...
    $4.95
    81 in stock
  • Kelvin Clip

    Product ID: 3313
    Kelvin clips are used whenever you need to get a measurement right at the contact points of a circuit or component. Even though these are grippy clips, each side of the clip is electrically insulated. So you can use it to grab onto a part (as seen above) and perform measurements. These can also be used in circuit if needed. The clip is bare and comes with two jaw...
    $2.50
    86 in stock
  • Toggle Clamp - Small Flip-down Style

    Product ID: 2459
    *Ka-thunk* Pin down that PCB with our Toggle Clamp, a sturdy and reliable way to quickly press and release with precision! A pogo-pin bed is a great way to connect and test boards without any soldering, but you have to somehow get that PCB aligned right and evenly pressed down on each pogo. After much experimenting, we settled on this toggle clamp and we use it all...
    $3.95
    In stock
  • White Nylon Machine Screw and Stand-off Set – M2.5 Thread

    Product ID: 3658
    Totaling 420 pieces, this White Nylon M2.5 Screw Set is a must-have smörgåsbord for your workstation. You'll have more than enough screws, nuts, and hex standoffs to construct your maker projects for days on end! M2.5 screws fit nearly all of the Adafruit breakout/development board mounting holes (2.5mm or 0.1" drill holes). These screws work handsomely...
    $14.95
    95 in stock
  • Basic Multi-Color Micro SMT Test Hooks (6-pack)

    Product ID: 4322
    Testing and debugging is a challenging step in board manufacturing. It can be super tricky on a fully populated PCB. So how can you test connections when you have an assortment of components blocking your probe? These Basic Micro SMT Test Hooks have solderable tabs on one end so you can attach a wire, and on the business end, a spring-actuated double-hook.They easily...
    $3.50
    39 in stock
  • Toggle Clamp - Medium Flip-up Style

    Product ID: 2456
    *Ka-thunk* Pin down that little PCB with our Toggle Clamp, a sturdy and reliable way to quickly press and release with precision! A pogo-pin bed is a great way to connect and test boards without any soldering, but you have to somehow get that PCB aligned right and evenly pressed down on each pogo. After much experimenting, we settled on this toggle clamp and we use...
    $3.95
    In stock
  • Black Nylon Machine Screw and Stand-off Set – M3 Thread

    Product ID: 4685
    Totaling 420 pieces, this M3 Screw Set is a must-have for your workstation. You'll have enough screws, nuts, and hex standoffs to fuel your maker tendencies for days on end! M3 size screws fit a number of Adafruit breakout/dev board standoffs. Since they are nylon you can file them down easily, and they don't conduct electricity or interfere with...
    $16.95
    In stock
  • Pogo Pin Probe Clip

    Product ID: 1969
    The Pogo Pin Probe Clip is a great way to test and connect with pin-point accuracy without soldering! It's sort of like an alligator clip with a built-in springy pogo pin - so you can connect to any PCB pad for 'scoping, analyzing, or multimetering. The clip is strong enough to grip onto a PCB but has a soft grip so it won't mar or damage circuits. The 'tongue' is a...
    $2.95
    22 in stock
  • Pogo Pin Probe Clip - 2x5 1.27mm Pitch SWD

    Product ID: 5434
    The Pogo Pin Probe Clip with 2x5 0.05" pitch SWD spacing is a great way to test and connect with pin-point accuracy without soldering! It's sort of like an alligator clip with an array of built-in springy pogo pins - so you can connect to a PCB with classic 'SWD' pad holes, without soldering or a special adapter cable. The clip is constructed from PCB sections, with...
    $19.95
    In stock
  • Small PCB Test Points (100 pack) - Red

    Product ID: 3825
    Testing is an important step in board manufacturing. And it can be super tricky on a fully populated PCB. So how can you test connections when you have an assortment of components blocking your probe? These "mini loop type" Small PCB Test Points easily snap in to your project, and they're ideal for ultra-low profile surface-mount testing! They will attach to J hooks,...
    $9.95
    52 in stock
  • Small PCB Test Points (100 pack) - White

    Product ID: 3824
    Testing is an important step in board manufacturing. And it can be super tricky on a fully populated PCB. So how can you test connections when you have an assortment of components blocking your probe? These "mini loop type" Small PCB Test Points easily snap in to your project, and they're ideal for ultra-low profile surface-mount testing! They will attach to J hooks,...
    $9.95
    55 in stock
  • Bus Pirate 5 Probe Cable Set

    Product ID: 6020
    This luxurious accessory will make your Bus Pirate 5 a joy to use. This keyed and locking probe cable made of premium soft and flexible silicone-coated wire connects to the Bus Pirate 10-pin main header. The ends are 2.54mm Dupont connectors that fit many different types of probe hooks, as well as custom-milled breadboard adapter pins. Silicone covered wires means it...
    $27.06
    97 in stock
  • Black Nylon Machine Screw and Stand-off Set – M2.5 Thread

    Product ID: 3299
    Totaling 380 pieces, this M2.5 Screw Set is a must-have for your workstation. You'll have enough screws, nuts, and hex standoffs to fuel your maker tendencies for days on end! M2.5 size screws fit almost all of the Adafruit breakout/dev board mounting holes (2.5mm or 0.1" drill holes). Works great with many Feathers, Adafruit breakout boards, Pi HATs and plates, and...
    $16.95
    Out of stock
  • JST-SH 4-pin Cable with Micro SMT Test Hooks - STEMMA QT / Qwiic

    Product ID: 5037
    This cable will make it super easy to use our plug-and-play STEMMA QT boards and controllers with chips, breakouts, and other devices that are I2C compatible but don't come with a STEMMA QT socket already on 'em. On one end you get a Qwiic / STEMMA QT connector (technically known as a JST SH 4-pin plug) into 4 individual wires with 'micro hook' ends. The hooks are...
    $2.95
    Out of stock
  • IC hook set (9 pcs)

    Product ID: 401
    When alligator clips and even scope probes are too large, IC hooks come to the rescue! These fine clips are very nice, and come in a set of 9 colors (black, brown, red, orange, yellow, green, blue, violet, gray). They provide a nice strong grip on SOICs, TQFPs, anything with 0.6mm pin pitch or larger. The hook is made of strong gold-plated 'piano wire', and there are...
    No longer stocked
  • Computer Repair Screw and Standoff Kit

    Product ID: 5411
    The Computer Repair Screw and Standoff Kit contains all those bits and pieces that get lost whenever installing stuff into your computer or electronics devices: the screws, standoffs, washers and more that are used for the chassis, fan, motherboard and component extras. They may also be used by other electronic devices around your home. Particularly useful if you are...
    No longer stocked
  • Small PCB Test Points (100 pack) - Black

    Product ID: 3823
    Testing is an important step in board manufacturing. And it can be super tricky on a fully populated PCB. So how can you test connections when you have an assortment of components blocking your probe? These "mini loop type" Small PCB Test Points easily snap in to your project, and they're ideal for ultra-low profile surface-mount testing! They will attach to J hooks,...
    No longer stocked