The LENOX® Bi-Metal Hacksaw Blades have a revolutionary blade design that delivers up to 100% longer blade life versus the prior generation of LENOX® hacksaw blades. The bi-metal construction allows blades to bend and flex without breaking.Select Option 300 x 13mm 18 TPI (Pack 10)300 x 13mm 24 TPI (Pack 10)300 x 13mm 32 TPI (Pack 10) Add to Basket Quantity