Chisel STANLEY STA54412 flat SDS-plus 40 x 200 mm

Flat SDS-plus chisel STANLEY STA54412 with a 40 mm blade width and 200 mm overall length, designed for use with SDS-plus rotary hammers. The chisel is intended for chiselling, grooving and removing material from concrete, masonry and natural stone. The SDS-plus shank provides a quick and secure fit in compatible hammer drills and allows efficient transfer of impact energy for demanding construction and renovation tasks.

Advantages

The chisel is made from heat-treated tool steel to maintain edge hardness under repeated impact. Its flat 40 mm blade offers a wide cutting surface for faster material removal while the 200 mm length gives good reach into joints and confined spaces. The SDS-plus connection ensures stable retention in rotary hammers and minimizes play during use, increasing precision and user control. The geometry of the blade is optimized to combine effective chipping with resistance to tip deformation.

Suitable for

• Chiselling and removing concrete or mortar
• Creating grooves and channels in masonry
• Removing tiles, plaster and thin layers of screed
• Shaping and trimming natural stone and blockwork

Key specifications

• Blade width: 40 mm
• Overall length: 200 mm
• Shank type: SDS-plus
• Material: heat-treated tool steel
• Tip geometry: flat chisel profile for wide impact area

How to use

Fit the chisel into the hammer drill's SDS-plus chuck until it locks securely. Select an appropriate hammer power and impact mode for the material; start with lower power settings when working close to finished surfaces. Hold the tool firmly with both hands and position the flat blade against the work surface at the required angle. Use controlled, steady movements to chip away material, avoiding excessive lateral bending of the blade. Periodically inspect the cutting edge and replace the chisel if the tip becomes excessively worn or deformed.

Usage recommendations

Wear appropriate personal protective equipment including eye protection, hearing protection and gloves. Use the chisel with compatible SDS-plus rotary hammers rated for the work. For extended life, avoid using the flat chisel as a pry bar and keep the blade free of corrosive residues; sharpen or replace when material removal becomes inefficient.