Hock's 3/32" thick blades are world renowned for their improved cutting action. They offer a substantial improvement over the inferior chrome-vanadium junk that comes with so many tools. These high carbon steel blades can be honed more easily and will get sharper. They are Cryogenically treated A2 blades will hold that edge longer. All are 7" long and will fit 99.9% of Stanley and Record style planes with no modifications other than a simple frog adjustment.