18pcs /Set Multi-Purpose Telescopic Screwdriver Tester Bit Combination

1. Bit surface treatment: phosphate ash
2. Bit material: chromium vanadium steel (Cr_V)
3. Portable and widely applicable
4. Neutral/live wire detection: dim light indicates neutral, bright light indicates live; easy to test by touch.
5. Built-in hexagonal connector for secure attachment
6. Extended blade with easy-slide snap-on extension
7. Strong magnetic treatment on screwdriver head to prevent loss of small parts; accurate bit detection without damaging screws
8. Ergonomically designed handle for a comfortable, non-slip grip and easy handling
9. Weight: 278g
10. Dimensions: blade 13x2cm, handle 10x3.5cm, bit 2.5cm