Power Hacksaws Features • Available in metric and inch • Hardened and tempered high-speed steel teeth • Tough alloy steel back resistant to shock and breakage Benefits • Alloy back resists fatigue under the most adverse conditions Bi-Metal HSS-BS Cutting Edge of High Speed Steel Applications • Ideal for all general steel cutting • Works well in a wide variety of applications,including interrupted cuts CUTTING CHART FOR POWER HACKSAW BLADES-BS AND RS Cross Section to be Cut Material Thickness Bow Speeds in Strokes per Minute ** Up to 3/4" (20mm) From 3/4" to 1-1/2" (From 20mm to 40mm) From 1-1/2" to 3-1/2" (From 40mm to 90mm) Above 3-1/2" (Above 90mm) Pitch* Low-Carbon Steel 14-10 10-6 6-4 4-2-1/2 70-90 Medium Carbon Steel 14-10 10-6 6-4 4-2-1/2 60-80 High Carbon Steel 14-10 10-6 6-4 4-2-1/2 55-70 Carbon Low Alloy Steel 14-10 10-6 6-4 4-2-1/2 65-80 Carbon High Alloy Steel 14-10 10-6 6-4 4-2-1/2 45-60 Easy to machine steel 14-10 10-6 6-4 4-2-1/2 80-100 Tool Steel 14-10 10-6 6-4 4-2-1/2 55 -70 Low-Alloy High Speed Steel 14-10 10-6 6-4 4-2-1/2 50-60 High-Alloy High Speed Steel 14-10 10-6 6-4 4-2-1/2 45-55 Cast Iron Class 20 14-10 10-6 6-4 4-2-1/2 70-80 Cast Iron Class 40 14-10 10-6 6-4 4-2-1/2 65-75 Cast Iron Class 60 14-10 10-6 6-4 4-2-1/2 40 -55 Malleable Cast Iron 14-10 10-6 6-4 4-2-1/2 65-75 Austenitic Cast Iron 14-10 10-6 6-4 4-2-1/2 40-55 Inconel and Monel 14-10 10-6 6-4 4-2-1/2 40-55 Stainless Steels 14-10 10-6 6-4 4-2-1/2 50-60 Copper 14-10 10-6 6-4 4-2-1/2 95-140 Bronze 14-10 10-6 6-4 4-2-1/2 85-105 Brass 14-10 10-6 6-4 4-2-1/2 90-110 Aluminum 14-10 10-6 6-4 4-2-1/2 100-140 *The blade should be tensioned correctly . *Since you have two options for each thickness range, use a finaer pitch (more teeth per inch) for thinner sections and coarser pitches (fewer teeth per inch) for thick sections. ** For materials with width higher than 3", decrease at least 20% of cutting rates. 52 P ower H acksaws