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2. Dolos - Wikipedia

   en.wikipedia.org/wiki/Dolos

   A dolos (plural: dolosse [1]: 10 ) is a wave-dissipating concrete block used in great numbers as a form of coastal management. It is a type of tetrapod. Weighing up to 8 tonnes (8.8 short tons), dolosse are used to build revetments for protection against the erosive force of waves from a body of water.

3. Roller (agricultural tool) - Wikipedia

   en.wikipedia.org/wiki/Roller_(agricultural_tool)

   The roller is an agricultural tool used for flattening land or breaking up large clumps of soil, especially after ploughing or disc harrowing. Typically, rollers are pulled by tractors or, prior to mechanisation, a team of animals such as horses or oxen. As well as for agricultural purposes, rollers are used on cricket pitches and residential ...

4. Tetrapod (structure) - Wikipedia

   en.wikipedia.org/wiki/Tetrapod_(structure)

   A tetrapod is a form of wave-dissipating concrete block used to prevent erosion caused by weather and longshore drift, primarily to enforce coastal structures such as seawalls and breakwaters. Tetrapods are made of concrete , and use a tetrahedral shape to dissipate the force of incoming waves by allowing water to flow around rather than ...

5. Harrow (tool) - Wikipedia

   en.wikipedia.org/wiki/Harrow_(tool)

   The chain and disk rotate to stay clean while breaking up the top surface to about 1 inch (3 cm) deep. A smooth seedbed is prepared for planting with one pass. Harrowing with tractor and disk harrow in the 1940s) Chain harrowing can be used on pasture land to spread dung and break up dead material (thatch) in the sward. Similarly, in sports ...

6. Hoe (tool) - Wikipedia

   en.wikipedia.org/wiki/Hoe_(tool)

   A hoe is an ancient and versatile agricultural and horticultural hand tool used to shape soil, remove weeds, clear soil, and harvest root crops. Shaping the soil includes piling soil around the base of plants ( hilling ), digging narrow furrows ( drills ) and shallow trenches for planting seeds or bulbs .

7. Jackhammer - Wikipedia

   en.wikipedia.org/wiki/Jackhammer

   Point – general breaking; Stake driver – drives concrete form stakes; Scabbler – finishes surface smooth or for cleaning prior to bonding; Flex chisel – flexible metal blade (attached to shank with bolts) for tile removal and scraping; Bushing tool – multiple carbide points for cleaning up seams and knocking down rough spots in concrete