If you are setting up a manual metal shop, the first decision is not which brand to buy but which operations you need. Straight cuts are handled by shears; bends need a brake; curves need a slip roll. The four manual machines compared here approach that problem in very different ways-a small bench-mounted shear, a guillotine-style sheet cutter, a roof-panel cutter, and a combination brake/shear/roll. Match the tool to the thickest material you actually handle, and then decide whether portability or multiple functions matter more.
Quick Take
Before comparing price, answer three questions: What is the thickest metal you'll cut? Do you also need to bend or roll it? Will the machine stay on a bench or travel to the work? A manual shear that handles 6 mm steel is overkill for light aluminum sheet, and a panel-specific cutter only earns its place if you regularly trim profiled roofing.
Listed Price Comparison
| Product | Listed Price | Price Bar |
|---|---|---|
| Dyna-Cut Portable Manual Metal Roof Panel Shear | USD 1,295.00 | |
| KAKA Industrial 3-in-1 Sheet Metal Brake, Shear, and Slip Roll | USD 750.00 | |
| Guillotine Paper Cutter / Manual Metal Cutting Shear | USD 362.09 | |
| KAKA Industrial HS-12 Manual Metal Shear | USD 157.00 |
Decision Matrix
| Machine | Best use | Watch out |
|---|---|---|
| Dyna-Cut HRB36 | Portable cutting of profiled roof and barn panels | Blade profile must be confirmed before ordering |
| Guillotine-style manual shear | Straight cuts in sheet metal up to 2 mm | Capacity is too low for heavy plate |
| KAKA Industrial HS-12 | Bench shearing of flat steel, round steel, and sheet steel | Shear only; no bending or rolling |
| KAKA Industrial 3-in-1 | Cutting, bending, and rolling 20-gauge sheet | Rated for 20-gauge, not heavy plate |
Dyna-Cut HRB36 Portable Manual Metal Roof Panel Shear

The Dyna-Cut HRB36 is a manual, portable cutter aimed at metal roof panels and barn sheeting. Its useful detail is the blade profile list: AB Martin, Ag Panel, Corrugated, Dura Rib, R-Panel, Summit 7 Rib, and a no-profile option for flat stock. That means you can match the machine to the panel you are installing instead of forcing a straight cut across a ribbed profile. The catch is that you need to know which profile you need before buying because the tool requires a blade selection. If you only cut flat steel, this machine is more specialized than necessary.
Guillotine Paper Cutter / Manual Metal Cutting Shear

Despite the paper-cutter name, this manual machine handles aluminum, copper, iron, plastic sheets, and circuit boards. A 320 mm maximum cut length and a 2 mm thickness limit make it a lighter-duty bench tool for thin sheet work. The built-in tabletop ruler helps position cuts, and the alloy steel blade suits a mix of sheet materials. The trade-off is that 2 mm is a hard ceiling; thick steel is outside its reach. It sits between the entry-level shear and the multi-tool brake in both price and capability.
KAKA Industrial HS-12 Manual Metal Shear

The KAKA Industrial HS-12 is a workbench-mounted throatless shear with a 305 mm blade. It cuts 6.0 mm sheet steel, 13 mm round steel, and 70 x 6 mm flat steel. The throatless design appears in the product name, so this is the model to consider for work that needs an open rather than closed throat. Because it only shears, you would still need a separate brake or slip roll for bending and curves. As the most affordable machine in this group, it is the direct answer for shops that want a dedicated manual shear.
KAKA Industrial 3-in-1 Sheet Metal Brake, Shear, and Slip Roll

This 30-inch, 20-gauge machine combines three operations: straight shearing, 90° press braking, and slip rolling with curves down to a 1.53-inch diameter. The removable segment fingers in 1, 2, 3, 6, and 8-inch widths let you bend only part of a sheet, which is helpful for trays, boxes, and panels. Its 300-lb cast iron frame targets professional shop environments. The limitation is the 20-gauge capacity, so it will not substitute for a heavy plate shear. For shops doing light fabrication, this unit replaces three single-purpose tools in one footprint.
Final Recommendation
Start with the KAKA Industrial HS-12 if your work is flat steel, round steel, and flat bar on a bench. Move to the KAKA combination machine when you need to shear, bend, and roll 30-inch-wide sheet metal without buying three tools. Choose the Dyna-Cut HRB36 for portable cutting of corrugated and ribbed metal roofing. Pick the guillotine-style manual shear for lighter bench work in thin sheet and nonferrous materials. Use the price table above to anchor those choices in the range from USD 157.00 to USD 1,295.00.