aoben electric die grinder 1/4" collet, 28000 rpm power straight grinder tool, heavy duty for metal grinding, polishing, deburring & welding repair, ergonomic grip is up for auction in Tools & Home Improvement. The current bid is $5.00, 92% below the $59.99 MSRP, in Good Condition. This auction has ended — similar items appear in live auctions regularly.