DW SMTA212 L-Arm, 1/2 in Both Ends, 2-Pack
The SMTA212 is an L-arm that keeps the same diameter from one end to the other: 1/2 in at the clamp end, 1/2 in at the accessory end. That symmetry makes it an all-purpose arm, and the 2-pack with its two memory locks covers exactly the most frequent case — fitting out two identical positions.
What sets it apart
- Same diameter at both ends: 1/2 in
- Knurled rod
- Two 1/2 in memory locks included
- 2-pack, for two symmetrical positions
- Mounts either way round
- Chrome finish
An arm that mounts either way round
A dual-diameter arm dictates its orientation: there is a clamp end and an accessory end, and getting it wrong costs you a teardown. With the same diameter at both ends, the question disappears.
That seems trivial until you are setting up in dim light, fast, with parts pulled from a messy hardware case. A symmetrical arm is picked up, inserted and tightened without having to look at it.
The most widespread size in drum hardware
Half an inch is the most common diameter for accessory rods. V-clamps accept it, percussion mounts expect it, standard memory locks are made for it.
Staying at that size from end to end avoids an extra connector in the chain. Every change of diameter is one more place where you need the right part; here, there are none.
Two arms, and why that is the right number
Accessory positions rarely come one at a time. Two percussion pieces on either side of the snare, two effects pieces flanking the kit, two symmetrical positions on a rack: the setup naturally calls for a pair.
The pack of two arms and two memory locks covers that case with nothing left over. You set up both sides with identical parts, which gives comparable heights and a faster setup than two mismatched arms.
Specifications
| Single diameter | 1/2 in at both ends |
|---|---|
| Surface | Knurled |
| Memory locks in the pack | Two, 1/2 in |
| Number of arms | Two |
| Orientation | Either way |
What it is for
- Fitting out two symmetrical positions in a setup
- Mounting a percussion piece on a standard V-clamp
- Replacing mismatched arms with an identical pair
- Keeping spare arms in the most common size
- Completing a rack where everything is already half-inch
Compare with other manufacturers
L-arms with the same size at both ends, from other manufacturers:
| Manufacturer | Their own solution | The difference |
|---|---|---|
| Tama | Accessory L-rods | Often sold individually |
| Gibraltar | Half-inch L-rods | Leg lengths vary depending on the line |
| Mapex | Hardware accessory arms | Memory locks rarely included |
| Pearl | Standard accessory rods | Different knurling patterns |
Frequently asked questions
- What is the difference from the dual-diameter arms?
- Those step from one diameter to another to fit an accessory with a smaller hole. This one stays half-inch throughout, so it does not solve any size mismatch.
- Can it be mounted either way round?
- Yes, both ends are the same diameter: there is no set side.
- Are both memory locks the same size?
- Yes, two 1/2 in memory locks, which matches the rod from one end to the other.
- Will it work with an older percussion mount?
- If the mount accepts a half-inch rod, yes. It is the most widespread size, but measure rather than assume.
Avis clients
Fitting out two positions at once?
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