See the gap in the light—don't just read it
Knife-edge square measured against daylight with 2 μm accuracy. Students can detect shape deviations with the naked eye—no display, no battery.
Art. No. 18 010 060 · TP-Box
TP-Box Protractor Right angle or not—it’s the light gap that matters.
From the knife-edge square to the universal protractor on real test plates: Identify and evaluate perpendicularity, flatness, and dimensional deviations. Two workshop tasks with three precision test specimens—all in a carrying case.
2 Tasks · in the manual and in the course
2 Chapters · in the e-learning course
1 hrs Hands-on · total task time
6 Languages · same task, different language
Why this trainer
What it does in the classroom.
Four points where the TP-Box Protractor differs from a diagram — you measure on the trainer, not on the drawing.
Real-world situations as a starting point
Body Shop After a Rear-End Collision: Every task begins in the workshop, not in a textbook. The method is understood because its purpose is clear.
Good/Bad Gauges and Measurement
A knife-edge square indicates "OK" or "NOT OK," while a universal protractor provides the numerical value in degrees. Students learn when to use which tool—and why.
On the Go in a Suitcase
ABS case with everything you need: classroom, workshop, exam prep. No current, no setup—just unpack, review, and learn.
From the manual
The tasks that come with it.
- Knife-edge square and protractor — Check the red workpiece (4 corners) ★☆☆☆ 45 min
- Knife-Edge Square and Protractor — Gray and Blue Workpiece (8 Corners, Sketch) ★★☆☆ 60 min
Technical data
Everything in detail.
Specifications
| Form factor | TP-Box Suitcase · ABS Plastic |
|---|---|
| Learning units | 2 exercises · 3 test items · about 1.5 hours |
| Handbook | 44 pages · Theory · Tasks · Solutions |
Technical data
| Dimensions (W × D × H) | 265 × 171 × 71 mm |
|---|---|
| Weight | ca. 1.5 kg |
| Conformity | CE · UKCA · RoHS |
E-Learning · TPGO
The course for the trainer.
On every screen.
The TP-Box Protractor comes with a complete course on TPGO. It runs in the browser — tablet, phone, computer. The tasks walk through the same measurements the apprentice takes on the trainer: first the assumption, then the series of readings, then the comparison.
- 2
- Tasks · with measurement series and evaluation
- 2
- Chapters · from the basics to diagnostics
- 1 hrs
- Hands-on · total task time
- 6
- Languages · same task, different language
Fundamentals 100 % · Advanced 0 % SOLO 4–4 · Bloom Rating · EQF 2–2
- DE KMK · LF 2
- NL MBO · B1-K1
- UK IMI · LV01
- US ASE · I-B
- FR Bac Pro · C1.1
- CH BiVo · 1.1
- ES CFGM · 0452
- AU AUR · AURTTK002
Examples — in total the course is mapped to more than 90 curricula.
Certificate · Progress & XP
License for an unlimited number of students and teachers · Term: 10 years, renewable · Activation on your TPGO E-Learning domain.
Request now arrow_forward TP-Box Protractor in your workshop
We bring it to you.
A demonstration takes about two hours. We set it up, show the tasks on the trainer and the course that goes with it. You will see right away whether it fits your training workshop.