... Metric" Self-Centering Punch & Die with ten sizes! PRECISION BR metric 10 inch Trupunch Punch and ... "True Metric" Self-Centering Punch & Die with ten sizes!PRECISION BRAND "Metric 10" TruPunch® makes perfect, " ... dies No guess work needed to center the I.D. No need to scribe center lines Exclusive, patented ... 6mm, 7mm, 8mm, 10mm, 12mm, 16mm & 20mm Nine I.D. sizes: 3mm, 4mm, 5mm, 6mm, 7mm, 8mm, 10mm, 12mm ...