This universal workholding chuck offers maximum effective holding on the widest range of workpiece shapes and sizes. Its effectiveness is considerably enhanced by the new low profile feature, which adds more head room under the wheel. Only 3 1/2" in height, this low profile Interloc is a full 1 1/2" less than competitive units of the same type. This savings in height permits greater flexibility with added head room under the wheel to position the work or handle bulkier pieces. This results in savings in set up time and added productivity. It also reduces the chuck weight by 30% or more. The low profile is achieved with no loss of strength, precision or holding power. With the unique Walker Interloc design, more than 75% of the chuck's surface is major north or south poles, making it easier to locate workpieces without concern for locating poles. There is no wear loss due to the shallower polarity pattern in the replaceable top plate.