13 PCS Impact Screwdriver

• Forged from high-quality alloy steel, anti-knock handle can be used in heavy-duty environment, which is strong and durable

• The attached bits which are made of CR-V are with high strength and great toughness

• Standard: Conforms to DIN 3121/ISO 1174

• Hardened & tempered to 40-45 HRC

• Material: Chrome Molybdenum Steel

• Size 200 & 300mm with ball retainer, 400mm without ball retainer

• Material: 31 CrV 3 Chrome Vanadium Steel

• Standard: Conforms to DIN 3122, form F/ISO 3315

• For use with air or electric power tools

• Standard: Conforms to DIN 3129/ISO 2725, DIN 3121/ISO 1174

• Hardened & tempered to 40-45 HRC

• Material: Chrome Molybdenum Steel

• For use with air or electric power tools

• Standard: Conforms to DIN 3121/ISO 1174

• Hardened & tempered to 50-58 HRC

• Material: Chrome Molybdenum Steel

• ISO 3316, DIN 3120 A/C, ISO 1174-1

• Chrome Molybdenum Steel