Tacklife via Amazon offers the Tacklife 150-Piece Rotary Tool Accessories Kit for $12.97. Coupon code "CV4PT5G6" cuts it to $9.86. Plus, Prime members get free shipping. That's the lowest price we could find by $5. It includes pieces for cutting, grinding, sanding, sharpening, polishing, engraving, drilling, and cleaning. Deal ends February 14.