Silverline Ratchet Chuck Key 10 & 13mm Chucks

Amazon

Chemically-blackened metal body Dual head for most 10 mm and 13 mm chucks Reversible ratchet mechanism Durable rubber grip 11 teeth / 6 mm pilot and 12 teeth / 6 mm pilot, Weight: 0.2645547144 pounds, Manufacturer: SLTL4

Electrical World

Chemically-blackened metal body with dual head for most 10mm and 13mm chucks. Reversible ratchet mechanism. Durable rubber grip. 11 teeth / 6mm pilot, 12 teeth / 6mm pilot.