Collets: 3 mm & 6 mm (1/8" & 1/4") — versatile accessory compatibility. ???? US PRO 1/4" Air Die Grinder — Compact & Lightweight (25,000 RPM). 1 × US PRO 1/4" Air Die Grinder (151.66 mm, 0.33 kg). Ensure correct collet size is fitted and accessories are rated for the grinder's RPM before use.
