High quality, flexible blade Ground tooth design, provides an improved cutting performance Available in 18, 24, 32 tpi 2 per pack Designed as the ultimate high quality, flexible & virtually unbreakable blade that is perfectly suited to the Sterling Rhino Grip Bi-Metal Hacksaw Frame. The 12"/"300mm bi-metal blade can be used on most metals including unhardened tool steel and stainless-steel. The ground tooth design provides an improved cutting performance, in comparison to traditional hacksaw blades.