Product Description HACKSAW BLADES 18Tpi Pack of 10 blades Proprietary bi-metal unique- saw technology is behind the toughest hacksaw blades available. Fast cutting and long lasting these blades are engineered to offer a sturdier construction and longer cutting performance. Put simply these blades offer S uperior quality and are ideal for the tradesman that demands the best. Bi-metal unique- high speed steel Safe-Flex- hacksaw blades offer . Advantages STARRETT Bi-Metal Unique Hacksaw Blades Starrett Bi-Metal Unique uses superior technology to join two strips of high speed steel wires to a backing steel in a split phase, using the principle of solid state diffusion bonding. Bi-Metal Unique technology is totally different from traditional weld or laser bonding processes that rely on metal diffusion as the union agent at the interface. The proprietary (patent pending) solid-state diffusion process generates170% more weld contact area compared to the existing bi-metal high speed steels, that results in significantly reduced fracture and breakage at the HSS/backing material interface. The unique technology alters the blade area engaged in the cut for Multi-Edge Performance. The exceptionally strong teeth develop a groove after initial use. This produces dual chips that are more easily removed from the cut. For applications utilizing coolant, more of it flows to the cutting surface. This is the Split-Chip Advantage . The result is faster cuts and longer blade life – clearly demonstrated by exhaustive series of recent tests comparing Unique hacksaws blades against premium competing blades. 300mm to suit standard hacksaw frames Superior quality Shatter proof Flexible Teeth Per Inch (TPI): 18 TPI Dimensions LxWxT (mm): 300 x 13 x 0,65mm