The Killer Tools Bumper Perfect Hole Punch Deluxe Kit, No. ART251DX, is ideal for automotive professionals seeking maximum versatility. The kit encompasses a comprehensive range of 14 punch sizes (17mm, 18mm, 18.2mm, 19mm, 20mm, 22.5mm, 24mm, 26mm, 26.7mm, 27mm, 28.1mm, 29.3mm, 32mm, and 38.9mm), combining the ART251 and ART251EX functionalities into a single, convenient package.