: [“]: 1/4 ÷ 15/16
[“]: 5/16" ÷ 3/4"
T-profil T15 - T20 - T25 - T27 - T30 - T40 - T45 - T50 - T55
PH: PH1 - PH2 - PH3
PZ: PZ1 - PZ2 - PZ3
[“]: 7/32 ÷ 5/16
inbus [“]: 1/8 ÷ 3/8
Hlavice ProTorque zabírají na velkou plochu šroubu či matice.