<span style="font-size: 12pt;">★ 20 mm / 28 mm / 35 mm /42 mm /60 mm</span> <br /><span style="font-size: 12pt;">★ Excitation Mode: Micro step.</span> <br /><span style="font-size: 12pt;">★ The pulse cycle is 50%, and the impact speed can reach about 1MHz.</span>">