Amazon.com: Accusize Industrial Tools Cat40 Shank and 15 Pc Er40 Collet Set with Wrench in Fitted Strong Box, 1/8 to 1 inch, Ct40-Er40 : Tools & Home Improvement
HHIP 3900-5292 ER-40 Spring Collet, 1": Amazon.com: Tools & Home Improvement
Haimer 40.320.40 Collet Chuck, ER 40, Short, Version SK 40: Amazon.com: Tools & Home Improvement
Amazon.com: Accusize Industrial Tools ER40 Collet Chuck Extension Rod, 2.56 in. Shank Length, 1 in. Straight Shank Alloy Steel, 0223-0213 : Tools & Home Improvement