YaeTek Smoothing Air Pneumatic Hammer Chisel Bits Set with 0.401'' Shank, 6pcs Air Hammer Bits Set, Air Hammer tool kit with Springs

6 Pcs Air Hammer Bits Set, 0.401 Shank Smoothing Pneumatic Air Hammer Pneumatic Chisel Bits Tools Kit, With Springs Specifications: Material: Alloy Steel Color: Black Size: (Length*Diameter) * Extended Length Air Hammer bit: 176mm * 25mm (6.93" * 0.98") * Oval-shaped Head Air Hammer bit: 81.5mm * 35mm (3.20" * 1.37") * 2 Pcs Flat Head Air Hammer bits: 102mm * 30mm (4.01"* 1.18"); 80mm * 35mm (3.14" * 1.37") * Handle Diameter: approx.10mm (0.4"). * Spring: 28mm* 26mm (1.10"* 1.02") Hammer bits for 150mm, 190mm, 250mm pistol hammers and air shovels Package Included: 3 x Flat Head Air Hammer bits 1 x Spherical Head Air Hammer bit 2 x Springs Note: * 4 Pcs air hammer drill bits must to be installed in the Pneumatic Sewing Machine and connected to the air compressor when using. * Please allow 1-3mm error due to manual measurement.