Check the listing for details. Oneway Big Bite Chuck Spur. Condition: New. Listed at 29.48 USD. Oneway Big Bite Chuck Spur, 845945, Drive large, uneven blanks between centers, Drive pieces up to 24" in diameter, The spur has a 1" locating plug to center securely into the chuck, and it is grabbed crosswise by the jaws for a secure hold, Teeth and point are 60 degrees, so the spur will bite deeply and easily, Takes advantage of the holding power of the chuck, which makes it very economical, Drive uneven, large diameter blanks between centers with ease. At 3-1/2" wide, the Big Bite Chuck Spur easily drives pieces up to 24" in diameter, but is safely contained inside the body diameter of even the smallest chuck. The spur has a 1" locating plug to center securely into the chuck, and it is grabbed crosswise by the jaws for a secure hold. The teeth and point are 60 degrees,.