Chisel STANLEY flat 20×250 mm SDS-plus STA54407

Flat chisel STANLEY 20×250 mm SDS-plus is a heavy-duty masonry chisel designed for use with SDS-plus rotary hammers. The chisel features a 20 mm wide blade and a 250 mm overall length, providing a straight cutting edge for controlled material removal in concrete, brick and stone. It is intended for demolition, chiselling out joints, removing tiles or rendering and other surface-removal tasks common on construction and renovation sites.

Advantages

This STANLEY flat chisel offers a robust hardened tip and a uniformly ground cutting edge that supports consistent performance during repetitive impacts. Compatibility with SDS-plus holders ensures secure connection and quick tool changes. The 250 mm length gives additional reach for working in confined areas while the 20 mm blade width balances precision and efficient material removal.

Suitable for

• Breaking out mortar and joints in masonry
• Removing tiles, render and plaster
• Chiselling channels or recesses in concrete
• General demolition and surface preparation on construction sites

Key specifications

• Blade width: 20 mm
• Overall length: 250 mm
• Shank type: SDS-plus compatible
• Blade shape: flat/straight cutting edge
• Intended materials: concrete, brick, stone, mortar

How to use

Insert the shank into the SDS-plus rotary hammer according to the tool manufacturer's instructions until it locks. Position the chisel edge on the work surface at the required angle and apply steady striking action with the rotary hammer's impact mode. For removal of thin layers, use lighter passes; for demolition, allow the hammer to deliver full impacts while maintaining control. Periodically inspect the chisel tip for wear or deformation and replace if the cutting edge becomes excessively rounded or damaged.

Usage recommendations

Use appropriate personal protective equipment including safety goggles, gloves and hearing protection. Ensure the rotary hammer is rated for use with SDS-plus accessories and follow the power tool manufacturer's guidance on impact energy limits and safe operating procedures.