Bosch PRO S1137EAF Thin Metal Reciprocating Saw Blade

The Bosch PRO S1137EAF is a bi-metal reciprocating saw blade designed for precise cutting of thin-wall metal pipes, profiles, and steel fittings, lasting up to 3x longer than the Bosch S922AF blade.

Constructed with a hardened high-speed steel (HSS) tooth strip bonded onto a high carbon steel (HCS) body, this bi-metal design delivers the ideal combination of a hard cutting edge and a flexible, robust body. The result is a blade that resists tooth wear during demanding metalwork applications, making it well suited to metalworkers, renovators, and electricians working with steel pipework and profiles.

The S1137EAF features a distinctive 3x3 tooth geometry, with varying tooth and gullet sizes across a 20+22+24 TPI pitch range. This multi-progression design optimises chip clearance and cutting efficiency across the recommended material thickness range of 1mm to 3mm. The curved tooth section further improves blade-to-material contact for a smoother, more accurate cut.

At 225mm total length with a 175mm maximum cut capacity and 1.1mm blade thickness, this is a capable blade for controlled cutting in thin metal. It fits all standard S-shank reciprocating saws.

Features and Benefits:
• Lasts up to 3x longer than the Bosch S922AF blade
• Bi-metal construction combines HSS teeth with a flexible HCS body for durability and precision
• 3x3 tooth geometry with 20+22+24 TPI for optimised cutting efficiency
• Curved tooth section improves contact for a smoother, neater cut
• Suitable for thin-wall metal with a recommended material thickness of 1–3mm
• Fits all S-shank reciprocating saws

Specifications:
Total length: 225mm
Max. cut capacity: 175mm
Width: 25mm
Blade thickness: 1.1mm
Tooth design: 3x3
Tooth pitch: 20+22+24 TPI
Tooth spacing: 1.1+1.2+1.3mm
Recommended min. material thickness: 1mm
Recommended max. material thickness: 3mm
Blade material: Bi-Metal (BIM)
Body material: HCS
Net weight: 0.231kg