Canterbury:Mohammad Aamer took five wickets to leave Pakistan with an overall lead of 187 heading into the final day of three against Kent here at the St Lawrence Ground.
Left-arm quick Aamer finished with five wickets for 54 runs as a second string Kent made 259 featuring discarded England batsman Joe Denly's 63.
Before stumps Pakistan lost opener Salman Butt lbw to Pakistani all-rounder Azhar Mahmood on their way to closing on 86 for one.
Aamer bowled nightwatchman Matt Coles early on Tuesday's play before removing first-class debutant Chris Piesley for nought with a ball the batsman edged to first slip after it had moved away.
James Hockley was out for a fifth-ball nought when, playing no stroke, he was bowled by a an Aamer inswinger.
Denly, who made fifty off 60 balls, was eventually bowled by a fast straight delivery from Aamer.
Pakistan will play Australia in two Twenty20 internationals on July 5 and 6 at Edgbaston before playing two Tests against the Aussies at Lord's and Headingley.
After playing Australia, Pakistan will feature in four Tests, two Twenty20 and five one-day games against England. The tour ends on September 22.