What is Socket 288VF 288VF is a socket designed by MAKITA. Saiz 4cm offset 6cm. 288VF socket is a standard design for high capacity heavy duty battery. Why choose 288VF? Standard bracket and can be converted to Superbattery. Product description HAIKO 21V-288VF Professional Cordless Impact Driver True Torque 220 / 600NM FEATURES: - 21volt motor for long life - Idle speed: 0-4,200 rpm - torque, max.: 220 /600 Nm - Tool holder: 1/2´´ outer square friction ring + side hole - LED work light - True Power 21Volt battery cell PACKAGE: 220-OneB-Case-5Bolt: 1 x Battery 20,000mah(2.0AH) 1 x Charger 1 x PVC Box 1 x 220nm Machine 5 x Bolt nuts (18, 19, 20, 21, 22mm) HAIKOCOMBO-220-12in1: 2 x Battery 20,000mah(2.0AH) 1 x Charger 1 x Big Air Box 1 x 220nm Machine 5 x Bolt nuts (18, 19, 20, 21, 22mm) 1 x Screw Adaptor 1 x Cross Philips Screw Bits 600-OneB-ala-5Bolt: 1x 600NM machine 1 x Battery 20,000mah(2.0AH) 1 x Charger 5 x Bolt nuts (18, 19, 20, 21, 22mm) 1 x Carton Box 600-twoB-ala-5Bolt: 1x 600NM machine 2 x Battery 20,000mah(2.0AH) 1 x Charger 5 x Bolt nuts (18, 19, 20, 21, 22mm) 1 x Carton Box 600-OneB-ALA: 1x 600NM machine 1 x Battery 20,000mah(2.0AH) 1 x Charger 1 x Carton Box 600-TwoB-ALA 1x 600NM machine 2 x Battery 20,000mah(2.0AH) 1 x Charger 1 x Carton Box 600-TwoB-Case-5Bolt 2 x Battery 20,000mah(2.0AH) 1 x Charger 1 x PVC Box 1 x 220nm Machine 5 x Bolt nuts (18, 19, 20, 21, 22mm) 600-TwoB-Case-NoBolt 2 x Battery 20,000mah(2.0AH) 1 x Charger 1 x PVC Box 1 x 220nm Machine