... : 1) Engineers' cross pein hammer: 14mm, 16mm, 18mm, 20mm, 22mm, 25mm 2) Engineers' Features: 1) Engineers' cross pein hammer: 14mm, 16mm ... / 14 / 16 / 18 / 20lb 4) Machinist's hammer: 20mm / 22mm / 25mm / 28mm / 30mm / 35mm / 40mm 5) Claw hammer: 21mm / 23mm ... / 25mm / 27mm / 29mm, 8oz. / 16oz. / 24oz. / 28oz. / 32oz. 6) Stone hammers: ...