Check the listing for details. Foam Hole Cutter By Full Set 3/4". 25/32" .7/8".1".1-1/8".1-3/16".1-3/8".1-1/2". Condition: New. Listed at 188.00 USD. Galaxy foam cutter for Upholstery soft materials use only. Cuts Perfectly Round holes in foam, best result in foam ILD 35 or above. Easy to use. Fits in any drill.Cuts Perfectly Round holes in foam.If the cutters are tilted and not in the center, unscrew the barrel and screw for adjustment, it does not need to screw all the way to the end.Stainless steel material . length 4-1/2"Available size 3/4" =18mm. 25/32"=20mm. 7/8"=22mm. 1"=25mm. 1-1/8"=28mm. 1-3/16" = 30mm. 1-3/8"=35mm..1-1/2"=38mm--------------------------------We got new diameter 1/2" and 2", Please check other listing for 10 different diameter, https://www.ebay.com/itm/154246584864 ---------DO NOT USE IMPACT MODE DRILL----- Also if worker need the more high efficiency , Spray something like WD40 or silicone spray in front of the tube. Or Sanding in front of the tube more sharp, Made sure the tube is circular. Other Size Available on Our New Listing ----- 154591963839