Drill bit Bosch CYL-3, 4 mm diameter, 75 mm length, 1 pc

The Bosch CYL-3 drill bit with a 4 mm cutting diameter and 75 mm overall length is a single-piece hammer-resistant bit designed for impact drilling. Manufactured to ISO 5468 standards, this heavy-duty drill bit is suitable for creating narrow, precise holes for fixings and general drilling tasks in concrete, masonry, limestone and natural or artificial stone. Its silver-grey, sand-blasted finish improves durability and reduces surface friction during drilling.

Advantages

This hammer-resistant drill bit is manufactured to ISO 5468, providing consistent quality and reliable performance in impact drills. The 4 mm cutting diameter and 75 mm length make it suited to precision drilling where narrow holes are required, while the sand-blasted silver-grey finish enhances wear resistance and helps chip evacuation. Supplied as a single piece, the bit is easy to store and replace, and its construction is intended to withstand the stresses of heavy-duty masonry work.

Suitable for

• Drilling holes for fixings in concrete and masonry
• Installing anchors in limestone and natural stone
• Creating narrow holes in artificial stone and similar materials
• Precision repair and assembly tasks requiring a 4 mm diameter hole

Key specifications

• Cutting diameter: 4 mm
• Overall length: 75 mm
• Construction: single-piece, hammer-resistant design
• Standards: manufactured to ISO 5468
• Suitable tool type: impact drills (hammer drills)
• Finish: silver-grey, sand-blasted

How to use

Secure the drill bit in the chuck of an appropriate impact drill, ensuring it is tightened correctly. Mark the drilling point, use a steady, perpendicular approach, and start drilling at low speed to establish the hole before increasing speed and applying consistent pressure. For deeper holes or hard materials, periodically withdraw the bit to clear dust and debris. Use appropriate personal protective equipment, such as safety glasses and hearing protection, and follow the drill manufacturer's guidance for hammer-mode operation.

Usage recommendations

Use the Bosch CYL-3 4 mm bit with an impact drill set to hammer mode for masonry and stone. Match drill speed and feed pressure to the material: lower speeds and moderate pressure for hard stone, higher speeds and steady pressure for softer masonry. Replace the bit if wear or chipping is detected to maintain drilling accuracy and safety.