Intended use: to cut the dentin by rotating in the canals
·     Stainless Steel & ISO standard metal handles
·     Recommended rotation rate: 150-350rpm
·     triangle cross section
·     Available size: 15#, 20#, 25#, 30#, 35#, 40#,Length: 21mm, 25mm
·     Packing: 6pcs/box with single size or different sizes from 15-40#