Concrete drill bit Dedra SDS+ 30 mm WPQ3041 for rotary hammer drills

The Dedra SDS+ 30 mm concrete drill bit (model WPQ3041) is a robust carbide-tipped bit designed for use with SDS+ rotary hammer drills. Intended for drilling into concrete, reinforced concrete and masonry, this 30 mm diameter bit provides the hole size commonly required for anchor bolts, dowels and through-holes for plumbing or electrical conduits. The SDS+ shank ensures secure retention in compatible hammer drills and fast bit changes during repetitive drilling tasks.

Advantages

The carbide tip and reinforced flute geometry increase wear resistance and prolong service life when drilling hard materials. The SDS+ connection offers reliable torque transfer and quick installation in rotary hammers. The 30 mm diameter delivers a consistent, clean hole suitable for common fixing systems, while the bit’s length and flute design help clear dust effectively to maintain drilling efficiency.

Suitable for

• Creating holes for anchors and dowels in concrete and masonry
• Installing plumbing pipes and electrical conduits through walls and floors
• General construction and renovation tasks requiring large-diameter concrete holes

Key specifications

• Shank type: SDS+
• Nominal diameter: 30 mm
• Intended material: concrete, reinforced concrete, masonry
• Tip: carbide-tipped cutting head
• Flute design: spiral flutes for efficient debris removal

How to use

Mount the SDS+ shank securely into a compatible rotary hammer drill according to the drill manufacturer’s instructions. Select an appropriate drilling mode (rotary hammer) and apply steady axial pressure; avoid excessive lateral force. Start at low speed to establish the hole, then progress with steady feed and moderate drill speed. Periodically withdraw the bit to clear dust from the hole and allow the bit to cool. For deep holes, work in stages and clear debris between passes to maintain cutting efficiency and prevent overheating.

Usage recommendations

Use personal protective equipment, including eye protection, hearing protection and a dust mask when drilling. Match drill speed and applied pressure to the drill and material — heavy-duty hammer action is appropriate for concrete, while light contact and steady feed are recommended to preserve the carbide tip. Replace the bit when wear significantly reduces drilling performance or when the cutting edges are damaged.