Star Flex flap disc for steel T29 125 mm grit 40
Description
Star Flex flap disc for steel T29 125 mm grit 40

Star Flex T29 flap disc with 125 mm diameter and grit 40 — high-quality abrasive tool with corundum coating, designed for intensive steel processing. The angled T29 construction ensures optimal contact with the material at a working angle of 10°–25°, which translates to effective edge grinding, chamfering and weld removal without excessive pressure.
The disc backing is made of strong fibreglass — a rigid yet lightweight material that effectively absorbs vibrations. This allows the operator to maintain full control over the tool during prolonged work, whilst the disc ensures uniform grinding results across the entire machined surface.
Advantages of angled construction (T29)
- Narrower contact surface — greater grinding pressure and faster material removal
- Ideal for working on edges, corners and hard-to-reach places
- Optimal working angle: 10°–25°
- Excellent abrasion — does not require high pressure force
Applications
- Grinding and removing welds after welding
- Chamfering and bevelling edges (deburring)
- Removing rust, dirt and adhesive from steel surfaces
- Removing old paint and coating finishes
- Smoothing surfaces without leaving scratches
Technical parameters
- External diameter: 125 mm (5")
- Mounting hole diameter: 22.2 mm (7/8")
- Grit: 40 (A40)
- Disc type: T29 – angled (conical)
- Abrasive material: corundum (aluminium oxide)
- Abrasive designation: SA40R-BF
- Hardness: R – hard
- Material to be machined: steel
- Max. speed: 12,200 RPM
- Max. peripheral speed: 80 m/s
- Weight: 0.075 kg
- Standard: EN 13743
- Certificate: ISO 9002
- EAN: 5901289679206
Star Flex is a brand of Postal Steel Group, valued by thousands of workshops and enterprises in Poland and abroad. Abrasive tools bearing this mark guarantee high performance parameters, reliability and safety — key features for daily steel processing at professional assembly and production stations.
Technical data
| Brand | Starflex |
| Diameter | 125 |
| Grit Size | P40 |