About these items High-frequency air hammer tools and needle scalers deliver between 2500 and 4500 bpm with stroke lengths of 1.57 or 2.76 inches for fast effective performance in metal cutting wall breaking bolt removal and surface cleaning. Ergonomic pistol or straight handle designs with one-button operation and responsive triggers ensure secure grip and easy control during long sessions reducing fatigue in repair workshops and construction settings. Each model includes 4 round shank chisels or a 19-needle scaler plus multiple air nozzle connectors and spring retainers allowing for fast tool switching and versatile functionality across different materials. Made from powder-coated aluminum alloy or reinforced steel with active air spring systems these air tools offer reliable vibration resistance precision and wear protection for durable everyday use. Ideal for cutting sheet metal removing rust breaking concrete or chipping welds these compact yet powerful pneumatic tools are tailored for auto repair metalwork facility upkeep and equipment maintenance. Key Differences WFH-1240 delivers 2500–2700 BPM with a long 2.76 in stroke and 6.7 in chisels offering maximum impact for tough demolition jobs WFH-1042 strikes at 3500 BPM with a 2.76 in stroke and 4.7 in chisels balancing high power and compact handling WFH-1040 delivers the fastest 4500 BPM with a shorter 1.57 in stroke ideal for precision and lighter duty WFH-1046 matches 4500 BPM with added needle scaler for rust and paint removal making it a hybrid tool for versatile use WFH-1047 is a dedicated rust removal needle scaler with adjustable airflow and 19 hardened needles for surface prep on plates and pipes Specifications Item Model Numbers: WFH-1240, WFH-1042, WFH-1040, WFH-1046, WFH-1047 Stroke Length: 2.76 in (WFH-1240, WFH-1042) 1.57 in (WFH-1040, WFH-1046) 3 mm (WFH-1047 Needle Scaler) Blow per Minute: 2500–2700 BPM – WFH-1240 3500 BPM – WFH-1042 4500 BPM – WFH-1040, WFH-1046 3400 BPM – WFH-1047 Chisel/Needle Size: Chisel Shank: 0.401 in / 10.18 mm (Round) Chisel Length: 4.7 in or 6.7 in Needles: 19 Hardened Needles (WFH-1047) Average Air Consumption: 14.5 CFM – WFH-1240 12 CFM – WFH-1042 11 CFM – WFH-1040 11.5 CFM – WFH-1046 12.5 / 12 CFM (Adjustable) – WFH-1047 Air Pressure: 90 PSI Air Inlet: 1/4 NPT Power Source: Air Powered Net Weight: 3.4 – 6.4 lbs (1.52 – 2.9 kg) Product Dimensions: WFH-1240: 7.7 x 6 x 2.1 in WFH-1042: 7.3 x 5.8 x 1.9 in WFH-1040, WFH-1046: 5.7 x 5.8 x 2 in WFH-1047: 11 x 1.7 in Package Contents WFH-1240 1 x Air Hammer 4 x 6.7 in Chisels (Round Head) 1 x Oil Injector 3 x Air Nozzle Connectors 1 x Spring Retainer WFH-1042 / WFH-1040 1 x Air Hammer 4 x 4.7 in Chisels (Round Head) 3 x Air Nozzle Connectors 1 x Spring Retainer WFH-1046 1 x Air Hammer 4 x 4.7 in Chisels (Round Head) 1 x Rust Removal Needle Scaler 3 x Air Nozzle Connectors 1 x Spring Retainer 1 x Hex Wrench WFH-1047 1 x Rust Removal Needle Scaler 19 x Hardened Needles 3 x Air Nozzle Connectors
| Color | Conventional Air Hammer 4500 BPM |
| Power Supply | None |
| SKU | sr25100755756432677 |
Your payment at SHEIN is secured with global payment security certifications.
SHEIN does not share personal information about you with nonaffiliated third parties. All your information and privacy will not be compromised.