Heat treated steel "circlip" pliers for large equipment repair. Replaceable tips and spring ratchet locking mechanism to securely hold against snap ring tension. Internal plier's capacity 3-1/16" to 6-1/4" (78mm to 159mm) snap rings. External plier's capacity 3-1/2" to 6-1/2" (89mm to 165mm) snap rings. Blow-molded storage case includes extra sets of replaceable 0.12" (3mm) dia. tips: straight, 45°, and 90°.