Klein Tools' 10-Key Ball-End Hex Key Set conveniently consolidates the most popular metric sizes into one compact case. The industrial strength, extended reach ball-end keys are optimal for working at angles up to 25 degrees. The secure storage case features an internal locking mechanism to prevent loss of keys.Features Secure storage with internal locking mechanism to prevent loss of keys Rust resistant black phosphate coating on every key L-style hex keys in convenient caddy set includes 10 sizes: 1.5mm, 2mm, 2.5mm, 3mm, 4mm, 5mm, 6mm, 7mm, 8mm, 10mm Heat-treated and tempered hex keys for added strength and durability Cross-compatible, interlocking cases for sleek and convenient storage to stack with other Twist-to-Lock cases Ball-end hex keys work effectively with angles up to 25 degrees Twist-to-Lock case for hassle-free hex key removal Twist-to-Lock Case Warnings Always wear approved eye protection. NOT insulated. Will NOT protect against electrical shock. Do NOT use a pipe or similar extension to increase leverage. End: Ball Size: 1.5mm, 2mm, 2.5mm, 3mm, 4mm, 5mm, 6mm, 7mm, 8mm, 10mm Number of Pieces: 10 Measurement Standard: Metric Type: L-Style Hex Key Application: Tightening or Loosening Screws or Hex Bolts Overall Length: 7 in (17.8 cm) Width: 2.64 in Overall Width: 3.1 in (7.9 cm) Height: 1.14 in Overall Height: 1.12 in (2.8 cm) Depth: 7.05 in Weight: 0.87 lbs Key Lengths: 3 in to 7 in (7.6 to 17.8 cm) Material: CR-V Steel Finish: Black Phosphate Color: Orange DownloadsSpec Sheet