Timemore Puck Calibrated Tamper 58.4mmDial in consistent extractions with the Timemore Puck Calibrated Tamper. A spring loaded mechanism delivers a tactile click at 14 kg (30 lb), standardising pressure shot after shot. The precision 58. 4 mm stainless base mates cleanly with most 58 mm baskets, while a low profile guide collar keeps the base square to the basket for a flat, even tamp and tidy edges. The weighty aluminium body sits comfortably in the hand for a straight, repeatable press.