INTRODUCING THE SPEKTRUM COLLET PROP ADAPTER The Spektrum Collet Prop Adapter transforms 4.0mm inputs into 1/4x28 outputs, delivering versatility for your aviation needs. FEATURES FOR OPTIMAL PERFORMANCE Designed specifically for brushless or brushed motors, this adapter encompasses a large shaft size accommodating 4mm shafts. WHAT'S INCLUDED IN THE PACKAGE Your purchase includes one prop adapter, one prop washer, and one 1/4 - 28 prop nut, ensuring you have everything needed for a secure attachment. INSTALLATION REQUIREMENTS To use the adapter effectively, ensure you tighten the prop nut adequately to compress it onto the motor shaft. PRODUCT SPECIFICATIONS With a total length of 1.3 inches (33mm) and a prop washer diameter of 1.1 inches (28mm), this adapter is both compact and efficient. Experience solid performance with the Spektrum Collet Prop Adapter, blending reliability and precision for your motorized projects.