$7 Minimum Shipping — USA Addresses $13 minimum on phone orders · Worldwide shipping — see checkout for all options · insurance automatically added to USA orders over $50
Spru of APC Standard E series inserts. Fits any prop with a .375" adapter-ring recess. 6 each of 5 different adapter rings.
1/8": 3.2mm
.160": 4mm
3/16": easily drilled close to 5mm using a #8 or 13/64" drill
.231": easily drilled to 6mm using a letter "B" drill bit
5/16"
Note: The factory-drilled hole in APC props should be carefully drilled slightly oversize. Use a centering ring to center the prop; the centering-ring recess is on center.
 "APC Standard E Prop Inserts - Fit E Series Props")