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Harrow disc center hole guide: square vs round holes, bolt patterns and how to measure an old disc so your replacement harrow disc fits the first time.

Notched vs plain disc blades compared: how each cuts, when to use a notched harrow disc on the front gang, and which plain disc blade fits finishing work.

Harrow disc heat treatment explained: how quenching and tempering give 65Mn and boron steel discs HRC 38–44 hardness, and what buyers should check.

Walking tractor attachments guide: ploughs, tillers, planters, mower, harvester and trailer for 101, 121 and 151 chassis. See which implements fit yours.

Hydraulic dump trailer guide: 10 SH models from 1.5 to 12 t, tractor HP matching, brakes and safe tipping tips. Compare sizes and get a factory quote.

Subsoiler for tractor guide: 4 SH 3SH models, 100–250 mm depth, 25–100 hp. Learn how to size, set up and maintain a subsoiler. Factory direct.

Hydraulic folding disc harrow guide: 4.4–6.2 m folding models for 105–160 hp, heavy offset and extra-large rastra pesada options for large farms.

Plough disc blades explained: 24–30 inch sizes on SH disc ploughs, weights, concavity and how to order a replacement disco de arado for your plough.

Harrow discs wholesale guide for dealers: which 12–36 inch discos de rastra to stock, 65Mn vs boron steel, packing weights and how to order direct.

Disc harrow size chart for 12–80 hp tractors: light vs medium 3 point disc harrows, disc diameter, working width and how to choose for your soil.