3-7/16" to 3-3/4. K Tool 73600 4-in-1 Oil Filter Wrench. All wrenches are marked with part number and size for ease of identification. Length: 9.60". K Tool International. Tool Storage. You agree to indemnify, defend and hold harmless J and B Tool Sales and our parent, subsidiaries, affiliates, partners, officers, directors, agents, contractors, licencors, service providers, subcontractors, suppliers, interns and employees, harmless from any claim or demand, including reasonable attorneys?.