1.0 High quality medical Stainless Steel
2.0 Used for expanding the canal entrance or preparation for middle-upper part of the canals
3.0 Short blades, diameter for working blades is from 0.50mm-1 .50mm
4.0 Ring numbers show different sizes
5.0 Recommended speed: 800-1200 rpm
6.0 Sizes:#1, #2, #3, #4, #5, #6, #1-6 Length: 28mm, 32mm