Key Facts — Yato YT-54101 Gutter Hook Bender
- Brand: Yato
- Model: YT-54101
- Type: Bending tool for gutter brackets and flat bar
- Maximum material thickness: 6 mm
- Bending angle: 30–90°, adjustable with stop screw
- Length: 630 mm
- Weight: 3 kg
The Yato YT-54101 is a gutter hook bender for shaping gutter brackets to the exact slope the gutter needs to carry water towards the downpipes. It takes hooks and flat bar up to 6 mm thick, and the angle is preset between 30 and 90° with a stop screw, so every hook in a run is bent the same.
The 245 mm base plate gives support when bending hooks on the ground or a workbench, and the long arms make it possible to bend hooks that are already fixed to the roof. The handles are rubberised for a secure grip, and the bending roller has a grease nipple so it keeps running smoothly over many jobs.
Besides gutter hooks, the tool bends various types of flat bar and earthing strip. The whole tool is made of painted steel and weighs 3 kg.
Why roofers choose a gutter hook bender with an angle stop
Because the fall of the gutter is set by the hooks. Each hook along the eaves needs a slightly different bend for the gutter to slope evenly to the downpipes, and a hook bent wrong leaves standing water or overflow. With the stop screw the angle is set once, and every hook after that comes out identical without measuring — far quicker and more accurate than bending in a vice with a hammer.
Applications for the hook bender
The hook bender is used when fitting new gutters, adjusting the fall on existing gutters where the hooks are already in place, replacing roof drainage during re-roofing, and bending flat bar and earthing strip in electrical and construction work.
Technical Specifications
| Material | Steel, painted |
| Slot width | 8 mm |
| Slot depth | 30 mm |
| Bending roller | 22 mm, with grease nipple |
| Tube diameter | 18 mm (base), 25 mm (handle) |
| Base plate width | 245 mm |
| Handles | Rubberised |
Used by: Sheet metal workers, roofers, construction workers, electricians and building caretakers.
Common in: Roofing and roof drainage, sheet metal work, construction and renovation, electrical installation.
Frequently Asked Questions (FAQ)
Which gutter hooks can the Yato YT-54101 hook bender handle?
Hooks and flat bar up to 6 mm thick. The slot is 8 mm wide and 30 mm deep, which determines how far the hook edge can go in before bending. Most standard brackets for metal gutters are below that thickness, but heavy brackets for large industrial gutters can exceed 6 mm — check the thickness before starting. Bending thicker material damages the tool.
How is the bending angle set on the Yato gutter hook bender?
With the stop screw, which limits how far the arm can travel. Set the required angle between 30 and 90° and bend a test hook. Once the angle is right, every following hook comes out the same without re-measuring. To give the gutter an even fall towards the downpipes, adjust the stop in small steps between hooks along the eaves.
What separates a gutter hook bender from bending hooks in a vice?
Precision and access. In a vice with a hammer each hook comes out slightly different, the coating on the hooks is easily damaged, and hooks already fixed to the roof cannot be adjusted. The Yato YT-54101 gives the same angle every time thanks to the stop screw, the bending roller presses the material evenly, and the long arms reach hooks that are already mounted.