Protimeter 5/32 inch hex key for the drill bit stop collar
The hex key that tightens the Protimeter drill bit stop collar.
Specifications
| Part number | BLD34DRCLR-K |
|---|---|
| Size | 5/32 inch hex |
| Application | Protimeter drill bit stop collar |
The part that goes missing
It is a small hex key that lives in a flooring kit and gets lost on the first job. Without it the stop collar cannot be set, and without the collar the test depths stop being consistent. Worth having a spare in the kit.
The 19 mm hole set
Four items make a repeatable hole. Missing any one of them shows up as inconsistent readings rather than as an obvious failure.
- Masonry drill bit, 19 mm (BLD34DR) — drills the hole
- Drill bit stop collar (BLD34DRCLR) — sets the depth so every hole is identical
- Hex key, 5/32 in (BLD34DRCLR-K) — tightens the collar
- Wire hole brush, 19 mm (BLD4653) — clears the dust, which otherwise sits against the sensor and slows equilibration
All four are supplied in the HygroMaster 2 Flooring Kit.
Tell us which Protimeter you run and we will confirm the right part before you order.

