Used to hammer the bearing and oil seal or bearing races. 14 types of attachments to accommodate bearings up to 0.4 - 1.7 inches (10 - 42 mm). Attachment size: 10-12, 12-14, 14-16, 15-17, 16-18, 18-20, 20-22, 22-24, 25-27, 28-30, 30-34, 32-36, 35-40, 38-42 (φmm) Handle size (approx.) 1.5, 1 4, 16cm