RF4 RF-SD35 Universal Repair Screwdriver Extra-hard Tempered Bits

iProGadgets Repair Tools Universal Repair Screwdriver Extra-hard Tempered Bits RF4 RF-SD35 Mobile Phone Disassembly Maintenance Bolt Driver Set

Features:
Newly designed screwdriver headers with hardness, solid as a rock
Good quality and  Beautiful surface color design
Embedded metal bearings use more stable
Non-slip, silent, multi-function
Suitable for mobile phone, computer repair, and so on precision maintenance
very good handle, durable; S2 steel bit, hardness up to HRC 60, excellent process; Strength and toughness are superior to chromium molybdenum steel, which is high-end tool steel
At the same time, “S2 steel” has better toughness and is not easy to break. Its advantages are shown in its durability. Compared with chrome vanadium steel, its service life is more than 20% longer