Master Mechanic, 5 Pack, Roofers Knife Blade, Made Of Heavy Duty .025" SK2 Carbon Steel, Fits All Standard Roofing Knives, 4 Useable Edges, For Cutting Shingles & Heavy Roofing Material.
Stanley, 18MM 0.020", Quick Point Knife Blade, For Models 10-151, 10-480, 10-330, 10-218, 10-280 & 10-150.