TacklifeDirect via Amazon offers its Tacklife 15-watt Engraver for $21.97. Coupon code "QW8M8Q2O" cuts that to $15.82. Plus, Prime members bag free shipping. That's a slight drop from our February mention and the lowest price we could find now by $12. It features 7,200 strokes per minute, a 5-position stroke adjustment dial, two stencils, and four tungsten carbide steel bits. Deal ends March 24.