10-in Bi-Metal Medium Cut Hacksaw Blade Set. A revolutionary new 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 or shattering. The 6 piece setes with 2 each of 12-in x 18TPI, 12-in 24TPI, and 12-in 32TPI.HART 2-Piec. 4.6. from. USAThis item: , 32 TPI, 10-Pack (20142V032HE) $15.99. Only 1 left in stock - order soon. Sold by Hudsdon Tools and ships from Amazon Fulfillment. FREE Shipping on orders over $25.00. LENOX Tools Mini Hack Saw Frame ) $8.99. In Stock. Ships from and sold by .Check out our 10 hacksaw blades selection for the very best in unique or custom, handmade pieces from our shops.