• Set of seven 3C round collets range in size from 1/8" to 1/2" by 16ths
• Includes 1/8", 3/16", 1/4", 5/16", 3/8", 7/16" and 1/2"
• Made of high grade tool steel
• Hardened and ground to close tolerance

The thru bore of the collets is 0.467". The 1/2" collet is bored to 1/2" by 0.66" deep. All the other collets will pass the full material size through the length of the collet.