Designed to work on brake nipples with standard threads between 5 & 11mm. Uses tapered brass inserts with central bleed screws. Includes all drill bits & tapered taps. Supplied with 2x small (1/8") replacement bleed valves (Part No. 62126) & 2x large (1/4") replacement bleed valves (Part No. 62125). All drills & taps considered consumable.