Running pipe through a steel stud wall is two jobs done back to back: drill the hole, then protect the pipe from the hole's sharp cut edge before it goes through. The Plumtool Steel Stud Rough-In Kit (PTKIT-STUD) pairs the two pieces that are actually sized to match each other.
What's in the kit
- Steel Stud Drill, 34mm (PTSS343)
- Multi-Fit Red Grommets for steel to 2mm thick, bag of 100 (PZMG2986)
Why the sizing match matters
The 34mm drill cuts a clean hole in steel studwork with a tooth design built for studwork rather than general metal — it's a different bit to what you'd use for timber. The red grommet is sized to lock into a 34mm hole in steel up to 2mm thick, so the pipe running through sits clear of the cut edge instead of resting against bare sheared metal that can wear through insulation or a pipe jacket over time. Plumtool also makes a smaller green grommet for a 25-27mm hole — if your stud gauge or pipe size is different, see our steel stud drill size comparison before assuming this is the right pairing for your job.
What this kit doesn't cover
34mm is the mid-size steel stud drill in the Plumtool range — Plumtool also makes 58mm and 76mm stud drills for larger pipe runs and gutter penetration work. This kit is specifically the 34mm drill with its matching grommet; if you need a different diameter, buy the drill on its own and pick the grommet size that matches your actual hole, not just whatever's in a kit.
Kit price vs buying separately
The drill and the 100-pack of grommets bought separately come to $157.31 ($95.35 drill, $61.96 grommets). The kit is $141.58, a genuine 10% saving. Since this is just two items sized to match, the only reason to buy them apart is if you already own the drill and need a grommet refill, or vice versa.
Frequently Asked Questions
Will this grommet fit a hole cut by a different brand's 34mm drill?
If the hole is genuinely 34mm, it should fit, but drill tolerances vary between brands — check the actual cut diameter before assuming a match, especially on an older or worn bit.
What's the difference between the red and green multi-fit grommets?
The red grommet in this kit suits a 34mm hole in steel up to 2mm thick; the smaller green grommet suits a 25-27mm hole. Match the grommet to your actual hole size and stud gauge, not the other way around.
Does this kit work for timber stud framing?
No — the 34mm drill in this kit is built for steel studwork specifically. For timber rough-ins, Plumtool's Rapid Bore wood drill range is the right tool.
How much do I save buying the kit instead of the drill and grommets separately?
$15.73 — $157.31 bought individually against $141.58 for the kit.