Professional 60-piece bit set with TORX, HEX (IMBUS), SPLINE, RIBE and SQ profiles, designed for tightening and loosening fasteners with corresponding internal drive shapes. Suitable for both home use and professional automotive workshops.

Set contents:

• TORX bits 10 mm:

T20, T25, T27, T30, T40, T45, T50, T55, T60 — L=30 mm
T20, T25, T27, T30, T40, T45, T50, T55, T60 — L=75 mm

• HEX (IMBUS) bits:

10 mm – 4, 5, 6, 7, 8, 10, 12 mm — L=30 mm
14 mm – 4, 5, 6, 7, 8, 10, 12 mm — L=30 mm
10 mm – 4, 5, 6, 7, 8, 9, 9.5 (3/8"), 10, 12 mm — L=74 mm

• SPLINE bits:

10 mm – M5, M6, M8, M10, M12 — L=30 mm
10 mm – M5, M6, M8, M9, M10, M12 — L=74 mm
14 mm – M14 — L=74 mm

• RIBE bits (10 mm):

M6, M7, M8, M10, M12 — L=74 mm

• SQ (square) bits 10 mm:

8, 10 mm — L=74 mm

• Bit holders:

1/2"×10 mm, 3/8"×10 mm, 1/2"×14 mm
Impact adapter: 14 mm × 10 mm

The bits in the GCAI6003 set are made from SCM-V (Chrome Molybdenum Vanadium Steel) and CR-V (Chrome Vanadium Steel), which provide exceptional strength and durability.

SCM-V contains chromium, molybdenum and vanadium, which increase steel hardness and wear resistance.
Molybdenum improves heat resistance, and vanadium increases impact strength and load capacity.
These properties make SCM-V ideal for tools that must withstand heavy and frequent use.

CR-V combines high corrosion resistance with durability.
Chromium protects against rust, and vanadium increases hardness — essential for tools exposed to high loads and long-term use.

Comparison with standard bits

Standard bits are usually made of S2 steel, which has lower durability and wear resistance.
While S2 is suitable for light or casual use, it is more prone to deformation and wear, making it less suitable for demanding or intensive work compared to SCM-V and CR-V.

Standard S2 steel bits are less resistant to wear and deformation in comparison.

Additional benefit:

The included impact adapter allows safe hammering on the bit without damaging it — ideal for seized fasteners.

When you use TOPTUL tools, you feel like a top-class professional.

Working with high-quality professional tools is always a pleasure — it provides confidence in durability, precision, and versatility.

Professional TOPTUL tools are created by professionals for professionals — this is a guarantee of success.