Jigsaw blade Bosch T 121 BF — bimetal, 92 mm length, 2 mm tooth spacing, for aluminium and medium-thick sheet metal, pack of 5

Bosch T 121 BF jigsaw blades are bimetal blades 92 mm in length with 2 mm tooth spacing, supplied in a pack of five. Designed specifically for cutting aluminium and medium-thick sheet metal, these blades combine a high-speed steel cutting edge with a flexible backing to deliver improved wear resistance and fracture toughness. The blade geometry and tooth pitch balance cutting speed and finish, allowing for both straight and curved cuts in thin to medium sheet materials.

Advantages

The bimetal construction provides a durable cutting edge while the flexible steel body reduces the risk of breakage during curved or contoured cuts. A 2 mm tooth spacing helps maintain an efficient cutting rate without excessive burr formation on metal edges. The 92 mm length fits standard tailless jigsaw blade holders and offers good reach for most sheet-metal tasks. Supplied in a pack of five, the set gives multiple replacement blades for repeated use.

Suitable for

• Cutting aluminium sheets
• Trimming medium-thick steel sheet metal
• Making straight and curved cuts in metal panels
• DIY metalworking and light professional sheet-metal tasks

Key specifications

• Blade type: bimetal (high-speed steel cutting edge with flexible backing)
• Length: 92 mm
• Tooth spacing (pitch): 2 mm
• Intended materials: aluminium and medium-thick sheet metal
• Pack quantity: 5 blades

How to use

Select a compatible jigsaw with a matching blade mounting system and install the blade according to the tool manufacturer's instructions, ensuring the teeth face the material to be cut. Secure the workpiece and mark the cutting line. Use a steady feed rate and moderate saw speed appropriate for metal cutting, allowing the blade to do the work without forcing it. For curved cuts, reduce lateral force to prevent blade binding or premature wear. After cutting, file or deburr edges as needed to achieve a clean finish.

Usage recommendations

For best results when cutting aluminium or medium-thick sheet metal, clamp the workpiece firmly, use cutting lubricant or coolant where appropriate to reduce heat and prolong blade life, and select a controlled feed speed to minimize burrs. Replace blades when wear or tooth damage affects cut quality.