Intended use: to cut the dentin by up-down pulling
·     NiTi alloy material & ISO standard metal handles
·     Recommended rotation rate: 150-350rpm
·     round cross section
·     Blade depth increase step by step, strong cutting force
·     Available size: 15#, 20#, 25#, 30#, 35#, 40#, Length: 21mm, 25mm
·     Packing: 6pcs/box with single size or different sizes from 15-40#