Hacksaw Blade Bahco 321-7-SB 31 cm Weight 70 g

The BAHCO 321-7-SB hacksaw blade is a 31 cm cutting blade designed for hand-held hacksaws. Weighing approximately 70 g, it is intended to deliver precise, durable performance when cutting a range of materials including wood, ferrous metals, non-ferrous metals and certain plastics. The blade's length and tooth geometry are balanced to provide controlled cutting action for both professional tradespeople and home users performing general metalworking and woodworking tasks.

Advantages

This hacksaw blade offers a combination of length and stiffness that helps maintain straight cuts and reduces blade wander. Its construction is focused on durability and consistent tooth performance, resulting in clean cut edges and extended service life under normal use conditions. The blade's weight and dimensions make it easy to fit standard hand-operated hacksaw frames, while still providing enough mass to stabilize cutting motions.

Suitable for

• Cutting ferrous metals such as steel rods and pipes
• Cutting non-ferrous metals like aluminium and copper
• General woodworking tasks that require a hacksaw blade
• Cutting certain plastics and composite materials
• Replacement blade for hand-held hacksaw frames

When it may not be suitable

This blade may not be suitable for very hard or hardened steels that require specialized high-speed or bi-metal blades designed for extreme wear resistance. It is also not intended for use with powered saw machines; it is designed for hand-operated hacksaw frames. For precision cutting of very thin sheet metal or intricate profiles, a blade with a different tooth pitch or a purpose-designed fine-tooth blade might be more appropriate.

Key specifications

• Overall length: 31 cm
• Weight: approximately 70 g
• Intended mounting: standard hand hacksaw frame
• Suitable material types: wood, ferrous metals, non-ferrous metals, plastics
• Tooth style: designed for general-purpose cutting (tooth pitch suited to mixed materials)

How to use

Install the blade into a compatible hand hacksaw frame, ensuring correct orientation of the teeth for cutting on the forward or backward stroke as intended by the frame design. Securely tension the blade to minimize flexing during use. Mark the cutting line on the workpiece, start with light guiding strokes to make a kerf, then apply steady, even pressure and maintain a consistent stroke length. Periodically clear chips from the cut and inspect the blade for wear; replace the blade when cutting performance diminishes or teeth become damaged.

What to consider before purchase

• Ensure the 31 cm length is compatible with your hacksaw frame.
• Confirm the blade tooth pitch and style suit the materials you plan to cut.
• Consider whether a specialized blade (fine-tooth, bi-metal or high-speed) is needed for very hard materials or high-volume cutting.
• Check replacement frequency expectations based on your typical workloads.

Usage recommendations

For longer blade life and better cut quality, use appropriate cutting lubricants on metal cuts, keep consistent stroke rhythm, and replace the blade if teeth are worn or the blade shows signs of bending.