- 1mm (book sewing needle size)
- 1.5mm (1/16" eyelet size)
- 3mm (standard 1/8" eyelet size)
- 4.5mm (3/16" eyelet size)
- 5mm (screw post size/rivet size)
Excellent for cutting holes in a variety of materials including papers, leathers, binders board, etc. Many times also referred to as a screw punch, or drill punch.