Sears continues to offer the Craftsman Bolt-On 3-3/8" Trim Saw Attachment, model no. CMCMTTS, for $37.99. Plus, Shop Your Way Rewards members will receive about $38 in SYWR Points. (Not a member? It's free to join.) Opt for in-store pickup to dodge the $6.99 shipping charge. Assuming you use the credit, that's tied with our mention from a week ago, savings of $40, and the lowest price we could find. It features a bolt mount and up to 3,400 rpm.
Of note, Shop Your Way Rewards members may be eligible for additional credits and discounts.