Bosch Expert 4 Piece CYL-9 Multi Construction Drill Bit Set

The Bosch Expert 4 Piece CYL-9 Multi Construction Drill Bit Set is a versatile multi-material drill bit set designed for accurate drilling across a wide range of construction materials.

Working on mixed materials is one of the most common challenges on a modern construction site. This set removes the need to swap between specialist bits — a single CYL-9 bit handles concrete, brick, granite, soft tile, wood, and metal with consistent precision. Bosch claims up to 5x greater precision compared to the CYL-3, making it a reliable upgrade for contractors and tradespeople who demand clean, accurate holes first time.

The performance comes from Bosch's fine-ground carbide tip and centering geometry. The specially designed centring tip prevents skidding on hard or smooth surfaces, while the optimised fluting channels debris away efficiently for faster, cleaner drilling. The cylindrical shank is compatible with standard three-jaw drill chucks, making it straightforward to use with most corded and cordless drills.

This four-piece set covers diameters from 4mm to 8mm, making it well suited to general fixings, cable and pipe penetrations, and multi-trade work where material types vary unpredictably.

Features and Benefits:
• Up to 5x more precise than the Bosch CYL-3 drill bit
• Drills accurately into concrete, brick, granite, soft tile, wood, and metal
• Bosch Centering Geometry provides a slip-free start and stabilised drilling action
• Fine-ground high-performance carbide tip for razor-sharp, long-lasting cutting edges
• Optimised dust extraction channel clears chips efficiently for faster drilling
• Cylindrical shank compatible with standard three-jaw drill chucks
• Set includes four bits covering 4mm, 5mm, 6mm, and 8mm diameters

Specifications:
Diameters: 4mm, 5mm, 6mm, 8mm
Total lengths: 75mm, 85mm, 100mm, 120mm
Working lengths: 40mm, 50mm, 60mm, 80mm
Net weight: 0.172kg

Contents:
EXPERT Multi Construction CYL-9 Drill Bit — 4mm (40mm working length)
EXPERT Multi Construction CYL-9 Drill Bit — 5mm (50mm working length)
EXPERT Multi Construction CYL-9 Drill Bit — 6mm (60mm working length)
EXPERT Multi Construction CYL-9 Drill Bit — 8mm (80mm working length)