Brownells Anti-Cam-Out Phillips Bits - #1 Magna-Tip Anti-Cam Phillips Bit
$1.99
Ridges dig in and grab the sides of the slot, keeping the bit from X"XreamingX"X the slots. Mfg: Brownells SPECS: 1" (2.5cm) long. " (6.3mm) shank. Set includes all three.