empowering creative people

Tools > Crimpers

Crimping Tool: 0.08-0.5 mm² Capacity, 20-28 AWG


$52.67 AUD, inc GST
$47.88 AUD, exc GST

More Views

Crimping Tool: 0.08-0.5 mm² Capacity, 20-28 AWG
52.67 AUD


$52.67 AUD, inc GST
$47.88 AUD, exc GST
1 reviews 0 5 5


  • $6.95 Standard (2-4 days, tracked)
  • $8.95 Express (Overnight*, tracked)
  • $3 Economy Post* (3-7 days, no tracking)
  • FREE Pickup (Newcastle only)

Shipping costs may increase for heavy products or large orders.

Exact shipping can be calculated on the view cart page.

*Conditions apply, see shipping tab below.

Note: This crimping tool is 3 mm narrower than Pololu's more versatile 0.1-1.0 mm² capacity crimper, and it does not crimp the full extent of the wire barrel on the JR, Futaba J, and 0.1" housing crimp pins (see the picture at the bottom of this page). It still makes a sufficient electrical connection between the crimp pin and the wire conductors, however, and the uncrimped portion of the wire barrel will be fully concealed by the connector housing.

Selecting the Right Tool

We also have a more versatile, wider (7 mm) crimper that can additionally crimp Tamiya and mini Tamiya connector crimp pins. Because the more versatile tool is wider, it can crimp the full wire barrel on the 0.1" housing crimp pins rather than just part of the wire barrel. You can use the following table to help you decide which cavity of which crimping tool you need:

Tool Cavity Crimp Pins Wire Gauge (AWG)
Crimping Tool: 0.1-1.0 mm² Capacity, 16-28 AWG Outer 0.1" Housing Female
0.1" Housing Male
JST Female
JST Male
JR Female
JR Male
Futaba Female
Futaba Male
Middle 22-26
Inner Tamiya Female
Tamiya Male
Mini Tamiya Female
Mini Tamiya Male
Crimping Tool: 0.08-0.5 mm² Capacity, 20-28 AWG Outer 0.1" Housing Female
0.1" Housing Male
JST Female
JST Male
JR Female
JR Male
Futaba Female
Futaba Male
Inner 22-26

Using the Crimping Tool

Prepare the wire by stripping about 1/8" (3 mm) of insulation from the end. Place the wire in the crimp pin, lining it up so that the stripped portion lies between the inner set of tabs on the crimp pin, while insulated wire lies between the outer set of tabs.

Place the wire and crimp pin on the appropriate tooth of the tool’s die, making sure that the insulated end is on the raised and wider half of the tooth. The tabs should point toward the cavity on the other side of the die so that the tool bends them inward around the wire when it closes. The picture below shows Pololu's more versatile crimping tool, but the procedure is the same for this crimper.

Close the jaws of the tool slowly and completely until they release. The tabs on a properly crimped pin should form one barrel around the wire conductors and another barrel for strain relief around the wire insulation. When using this narrower crimper on the JR, Futaba J, and 0.1" housing crimp pins, only part of the wire barrel gets crimped, but it is still enough to make a sufficient electrical connection to the wire conductors, and the uncrimped portion of the wire barrel will be concealed by the crimp pin housing. This tool is wide enough to crimp the full wire barrel of the JST crimp pins.

Tip: The strain relief barrel sometimes ends up a little overly flattened, making it too wide to fit comfortably into the crimp pin housing. In such situations, you can use a pair of pliers to gently squeeze the wider axis of the barrel into a more cylindrical shape that will slide easily into the housing.

One of Pololu's customers has made a very nice video tutorial that talks about how to make custom cables with Pololu's pre-crimped wires and with self-crimped wires. The section on using Pololu's crimping tool starts at approximately 4:15 and shows the process in detail. One of Pololu's distributors has also made a short video tutorial that shows how to use Pololu's crimping tool. Both videos demonstrate how to use Pololu's wider crimping tool, but the technique is the same for this narrower crimper.

This useful inspection chart (pdf) by JST shows properties of good and bad crimp connections to look out for when checking your own connections.

This product is listed in:

Documentation and Resources:
  • The Maker Revolution
  • The Maker Revolution celebrates the creation of new devices and the modification of existing ones - the transition from a consumer buying goods to eventually having a major part in their creation. The Maker Revolution places strong emphasis on free (...
  • What is a JST Connector?
  • JST is a standard of electrical connection used widely across a spectrum of electrical applications. It's defined as a Japanese Solderless Terminal and is manufactured by a company of the same name. The JST range includes a variety of families of con...

Product Comments

Customer Reviews

  1. Review by Dane verified purchaser

    Brilliant for crimping JST pins. Perfect finish every time. (Posted on 28/03/2018)

Exact shipping can be calculated on the view cart page (no login required).

We deliver Australia-wide with these options:

  • $3 for Small Items (3-7 days, not tracked, only available on selected small items)
  • $6.95 for Standard Post (2-4 days, tracked)
  • $8.95 for Express Post (Overnight for Australia Post Next Day Network, tracked)
  • Pickup - Free! Only available to customers who live in the Newcastle region (only after we email you to notify your order is ready)

International Orders - the following rates are for New Zealand and will vary for other countries:

  • $11.49 for Pack and Track (3+ days, tracked)
  • $16.50 for Express International (2-5 days, tracked)

If you order lots of gear, the postage amount might increment based on the weight of your order.

Our physical address (here's a PDF which includes other key business details):

Unit 18, 132 Garden Grove Parade
NSW, 2289

Take a look at our customer service page if you have other questions such as "do we do purchase orders" (yes!) or "are prices GST inclusive" (yes they are!). We're here to help - get in touch with us to talk shop.

Have a product question? We're here to help!