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If you’ve ever built with LEGO® Technic, you’ve likely come across a small but powerful piece for bringing all your creations to life: LEGO® Technic, Brick 1 x 2 with Axle Hole (AKA the LEGO® part with an axle hole). This design feature allows LEGO® Technic axles and pins to pass through or connect, enabling rotational movement and more complex mechanical builds.
So, What Is This Quintessential LEGO® Connector Called?
As discussed before, one of the most common parts in the LEGO® inventory is known as the LEGO® Technic, Brick 1 x 2 with Axle Hole, officially cataloged as Part 32064 (also known by the alternate ID 31493, with mold variants like 32064b, truthfully the ID list goes on forever). This brick has a single axle hole running sideways (perpendicular to the stud direction), which is key for creating mechanisms with rotating components like a car or vehicle.
Just so you know, LEGO® itself calls this piece “Brick 1×2 With Cross Hole” on Pick a Brick (design ID 31493), and “axle hole” is the BrickLink and community name that stuck. It is still in production too, with BrickLink listing it from 1998 through 2026 in 1,889 sets as of October 2026. Rebrickable even splits it into three molds — a + opening (32064a), an X opening (32064b) and one with bottom ridges (32064c) — and some 32064b bricks were molded with a + hole on one side and an X on the other!
Other Technic LEGO® Connector Variants
Another popular variant is the Technic Axle Extension 3m (BrickLink calls it Axle Connector 3L), identified by Design IDs 26287 / 42195. This piece, first released in 2016 as 26287 and later remolded as 42195 (the ID newer sets list), features axle holes on either end and is commonly used to lengthen axles or join multiple segments. It measures approximately 0.9" x 0.3" x 0.3" and appears in hundreds of sets, available in a plethora of colors.
Technic Pieces With “Holes” in Them Appear Everywhere…for Good Reason
In the broader Technic ecosystem, axle holes appear in many components:
- Quick part-number recap: the “brick with axle hole” most people mean is 32064.
- If you’re specifically looking for an axle extender/joiner, you’re usually after 26287 / 42195.
There are also rarer bricks with axle holes embedded sideways that combine both studs and axle functionality, which are ideal for LEGO® builders who want to merge traditional LEGO® and Technic systems for their own MOC (My Own Creation).
While you might search for the generic “Technic brick with axle hole,” that’s quite a general name for an incredible potent LEGO® piece. Depending on what you’re really after, the exact part you’re looking for may vary. For precision, referencing official part numbers like 32064 or 42195 is the best way to ensure compatibility in your next build.
Also, taking a picture of the piece you have or want and using Google images to find it is a safe bet!
Matt Buxbaum · CEO at Baumlinks LLC
Matt B. spends his time arm wrestling, boxing, and most importantly, building LEGO®. His eclectic tastes give you dynamic information on all things LEGO® news and LEGO® product releases.
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