Robertson vs Torx screw drives

Robertson Screwdrivers slot robertson screw The square-head screw was invented by P I Robertson, a Canadian, in 1908 It offered a big advantage over the slotted screw head because slot terbaik 2022 1 Overview · 2 Slotted drives Slot; Coin-slot · 3 Cruciform drives Cross; Phillips · 4 Square drives Robertson · 5 Multiple-square drives

slot pot Combination Slot-Robertson, Slot-Square Slot-Square Screw Drive Robertson-Slot Screw Drive I have no further comment… They is what they is… Combination Hex-