OTC Tools OTC 1183 Bearing Splitter Combo Pack. This combo pack contains four of OTC's most popular bearing splitters, plus a pulley pulling attachment. A rugged organizer case is included, enabling you to keep the tools together for instant use. Set No. 1183 consists of: #1121 Bearing splitter; #1122 Bearing Splitter; #1123 Bearing splitter; #1130 Bearing splitter; #679 Pulley puller attachment with a 5-7/8" max spread and 1-3/4" min spread.