Routing crown drill bit Sourcing for SDS‑MAX 35 x 150 mm

The Routing crown drill bit Sourcing for SDS‑MAX 35 x 150 mm is a holemaking accessory intended for use with SDS‑MAX rotary hammers. It features a 35 mm diameter cutting crown and a 150 mm overall length to form round openings in masonry, concrete and similar mineral building materials. The bit is designed to fit SDS‑MAX chucks and to produce clean, large‑diameter holes for pipe entries, conduit runs and installation fittings.

Advantages

This drill bit provides a consistent circular cut thanks to its 35 mm crown diameter and reinforced body suitable for impact drilling. The SDS‑MAX shank ensures secure, vibration‑resistant engagement with compatible rotary hammers, improving drilling stability and operator control. The overall length of 150 mm allows reaching deeper positions while maintaining a compact profile for typical installation tasks.

Suitable for

• Drilling round openings in concrete, brick and block for pipes and conduits
• Creating installation holes for electrical and plumbing fittings
• Use with SDS‑MAX rotary hammers on construction and renovation sites
• Situations requiring a 35 mm diameter penetration

When it may not be suitable

This routing crown drill bit is not intended for use in non‑masonry materials such as wood, plastics or metal; performance and tool life will be compromised if used outside recommended substrates. It is also not suitable for low‑power drills that do not accept SDS‑MAX shanks or do not provide impact action required for efficient masonry drilling.

Key specifications

• Cutting diameter: 35 mm
• Overall length: 150 mm
• Shank type: SDS‑MAX compatible
• Intended materials: masonry, concrete and similar mineral substrates

How to use

Secure the routing crown drill bit in an SDS‑MAX rotary hammer according to the tool manufacturer’s instructions. Mark the centre of the intended opening and, with the hammer set to the appropriate rotary/impact mode, bring the bit to the work surface with steady pressure. Start at low speed to establish the cut, then apply consistent force while allowing the tool’s impact action to remove material. Withdraw periodically to clear debris and prevent clogging. After reaching the desired depth, stop the tool and remove the bit once rotation has ceased.

What to consider before purchase

• Confirm your rotary hammer accepts SDS‑MAX shanks
• Ensure a 35 mm diameter hole meets the size requirements for pipes or fittings
• Assess whether the bit length (150 mm) provides sufficient reach for your application
• Check compatibility with the materials you will drill (masonry, concrete, etc.)

Usage recommendations

Use appropriate personal protective equipment (eye, ear and respiratory protection) when drilling masonry. Maintain steady pressure without forcing the bit, and clear dust frequently to extend bit life and maintain hole quality.