With Robertson and even Phillips widely available, why in the world

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HARDWARE MSR-004100 4-40 1 ROBERTSON-SLOT BOLT SCREW 100PACK HARDWARE MSR-004100 4-40 1 ROBERTSON-SLOT BOLT SCREW 100 Larger Photo

Robertson Screw, 1909 Public domain image obtained from slot screwdriver for assembling the wooden Mosquito bomber was very The Robertson Screwdriver set includes four square screwdrivers with 2-component handles for comfort All of the tips are colour-coded

demo slot fortune mouse This screw is actually a Canadian invention! Back in the late 1800s and early 1900s, the only screw available was the slot head screw However, PTA Robertson Screwdrivers feature ergonomic cushion grip handles, heavy duty chrome vanadium shafts and hardened magnetic tips Available in regular, long and