Proven, original consumable parts "MB" - For long, economical operation. Original two-piece handle - durable and ergonomic. Optimal button position and tapered handle design - for precise and predictable operation. Unique internal handle geometry in air-cooled chucks - allows cooling of the handle under maximum mechanical load. Super-light BIKOX current cable (LW) - provides a 34% reduction in handle weight. Robust and optimized EURO connection