Most hand-press grommet kits include three dies labeled #0, #2 and #4. Typical inner diameters are #0 = 1/4" (6 mm), #2 = 3/8" (9.5–10 mm) and #4 = 1/2" (12 mm). Some commercial machines concentrate on the #2 (about 10 mm / 3/8") size.
Weight capacity varies by fastener type: light-duty adhesive hooks typically hold about 0.5–2 lb; small nails and screws for drywall often hold 20–30 lb; and picture-hanger systems commonly come in rated options such as 15, 25, 45 and 65 lb.
Hand grommet kits commonly include dies plus small hand tools (wrenches, screws/nuts) and a user manual. Commercial machines may add brushes, funnels and spare dies. Clip and hook packs often include replacement adhesive strips or mounting hardware.
Warranty information varies by product; examples in the results include a "30 Day Limited Warranty" for some items and a "2 Year Limited Warranty" listed for certain hanging hardware sampler packs.