Screwdriver bit set Proline 10748 — 40 pieces, assorted drive types

Proline 10748 is a 40-piece screwdriver bit set that provides a wide assortment of drive types and sizes for general fastening and repair tasks. Designed to fit manual and powered screwdrivers, the set groups common TORX, XZN (triple square) and HEX (Allen) bits in two working lengths to cover a variety of fastening situations at home, in the workshop or on the job site.

Advantages

The set offers a compact, organized collection of 40 bits that reduces the need to carry multiple separate bit sets. Inclusion of both 30 mm and 75 mm lengths for each TORX, XZN and HEX size extends reach and accessibility when working in recessed or hard-to-reach fasteners. Compatibility with standard screwdriver bit holders and power drivers ensures efficient transfer of torque for most common fastening tasks.

Suitable for

• General household repairs and furniture assembly
• Automotive and motorcycle maintenance requiring TORX or XZN bits
• Workshop tasks and light professional trade work
• Use with manual bit drivers and powered screwdrivers

Key specifications

• Total pieces: 40
• Drive types included: TORX, XZN (triple square), HEX (Allen)
• TORX sizes: T20, T25, T30, T40, T45, T50, T55 — one piece of each in 30 mm and 75 mm lengths
• XZN sizes: M5, M6, M8, M10, M12 — one piece of each in 30 mm and 75 mm lengths
• HEX sizes: 4, 5, 6, 7, 8, 10, 12 mm — one piece of each in 30 mm and 75 mm lengths
• Additional adapters/inserts: 3/8", 10 mm, 1/2" noted in the set contents

How to use

Select the bit that matches the fastener head and insert it into a compatible bit holder or the chuck of a powered screwdriver. For recessed or deep-set fasteners choose the 75 mm length; for standard or shallow fasteners choose the 30 mm length. Apply steady axial pressure while driving fasteners to maintain bit engagement and avoid cam-out. For powered use, set the driver to an appropriate torque or speed to prevent fastener or bit damage.

Usage recommendations

Store bits in their original case or an organized holder to prevent loss and to keep sizes clearly labeled. Inspect bits for wear or damage before use and replace worn bits to maintain secure engagement and safe operation. Use the appropriate bit size and type for the fastener to avoid rounding or stripping.