I'd use this with whatever grind on the tip that worked best

https://www.lowes.com/pd/IRWIN-1-Blade-Utility-Knife/50084018?cm_mmc=SC
E_PLA-_-ToolsAndHardware-_-UtilityKnives-_-50084018:IRWIN&CAWELAID=&kpid=5008401
8&CAGPSPN=pla&store_code=1590&k_clickID=95c900ba-5528-4572-a871-332f8d76cfba">ht
tps://www.lowes.com/pd/IRWIN-1-Blade-Utility-Knife/50084018?cm_mmc=SCE_PLA-_-Too
lsAndHardware-_-UtilityKnives-_-50084018:IRWIN&CAWELAID=&kpid=50084018&CAGPSPN=p
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$4.00