Save time changing to different shank size accessories and burs with these Foredom Micro Chucks and collet adapters which allow the use of smaller shank accessories without having to change your handpiece collet. Specifications Nickel plated Micro Chucks hold different size burs and accessories and are a great way to easily use a different diameter shank accessory quickly without any of the work involved with changing collets in your Foredom handpieces to adapt to different shank diameter carving burs and rotary accessories. A-M52 has 3/16" head diameter, 1-5/16" length, fits 3/32" to 1/16" friction grip burs, 20,000 RPM Max Speed. Used to "step down" the collet size without having to actually change the collet in your handpiece. A-M50 has 1/4" head diameter, 2-1/4" length, fits 3/32" shank diameters and drills #70-80, 10,000 RPM Max Speed. A-MC2 has 1/4" head diameter, 1-5/16" length, fits 1/8" to drills #60-80, 10,000 RPM Max Speed A-M53 has 1/4" head diameter, 2-1/16" length, fits 3/32" to 3mm rods, 10,000 RPM Max Speed. Ideal for use with very think shank drills.
