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Step 90Polydrive®
[[br]]Polydrive®, also known as Ribe CV", Ribe CS" or simply Ribe", is a fastener specification used primarily in the automotive industry, for example the VW engine head bolts. Ribe CV" for spline socket head screws are a registered TM of Richard Bergen GmbH Co.
A Polydrive® bit has 6 teeth at equal spacing and with flat tips to the teeth. Size is determined by OD diameter at the star points. Functionally, it is similar to Torx® and Bristol Spline drive, all of which are systems using internal bit-socket drivers along with specially-designed bolts, screws, and other fasteners. Its primary advantage over older fastener driver standards, such as the common Phillips® head (and its sibling Pozidriv®), is that it resists camout, and is thus used in higher torque applications such as brakes and drive-shafts.[[br]]
A Polydrive® bit has 6 teeth at equal spacing and with flat tips to the teeth. Size is determined by OD diameter at the star points. Functionally, it is similar to Torx® and Bristol Spline drive, all of which are systems using internal bit-socket drivers along with specially-designed bolts, screws, and other fasteners. Its primary advantage over older fastener driver standards, such as the common Phillips® head (and its sibling Pozidriv®), is that it resists camout, and is thus used in higher torque applications such as brakes and drive-shafts.[[br]]
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