I’ll second that they are surprisingly good punches but he was referring to these.

OWDEN Professional 13 Pcs Leather Hole Punch Set (Slim Style) 1.0-12MM for Leather Belt,Watch Band and Leather Strap Gasket. with a Free 3" Nylon mat. https://www.amazon.com/dp/B087D2Z43F/ref=cm_sw_r_cp_api_glt_fabc_K4PTDXKY58BPA1HPB3SF