Rotary Hammer Drill Bit MEGA SDS+ 14 mm 81421 for Concrete

MEGA SDS+ 14 mm drill bit model 81421 is made for impact drilling into concrete and masonry with SDS+ rotary hammers. The 14 mm diameter provides a dedicated solution for creating holes for anchors, dowels and fixings in reinforced concrete, brick and other solid substrates. The bit’s design matches SDS+ tool interfaces and is intended for construction, installation and repair applications where reliable percussion drilling is required.

Advantages

The bit combines a pointed carbide tip geometry with a robust shank to ensure efficient material removal and long service life under repeated hammer action. Its SDS+ shank guarantees quick, secure mounting and accurate impact transfer from the rotary hammer. The single-diameter design simplifies tool selection for jobs that require consistent hole size and repeatable anchor seating.

Suitable for

• Drilling anchor and dowel holes in reinforced concrete
• Creating fixing points in brick and masonry
• Installation and repair tasks on construction sites and in buildings
• Applications that require use with SDS+ rotary hammers

Key specifications

• Drill diameter: 14 mm
• Intended material: concrete, reinforced concrete, brick, masonry
• Shank type: SDS+ compatible shank for quick coupling
• Drilling method: impact/percussion drilling with rotary hammer
• Typical use: anchor and fixing hole preparation

How to use

Select an SDS+ rotary hammer that supports a 14 mm bit and secure the MEGA SDS+ 14 mm bit in the tool’s chuck until it locks. Mark the drilling point and, if necessary, start with a pilot position at low speed to stabilise the bit. Use the hammer function and apply steady axial pressure; avoid excessive side load. Withdraw the bit periodically to clear dust and allow cooling during deep holes. After drilling, clean the hole of dust before inserting anchors or fixings.

Usage recommendations

Use appropriate personal protective equipment including safety glasses, ear protection and dust mask when drilling concrete. For best results, match drill speed and hammer energy to the substrate and avoid applying lateral force that can reduce bit life. Replace the bit when cutting performance declines or the tip shows visible wear.