Thumb Score: +32 Amazon has 8-Piece Bosch GT3000 Carbide Glass & Tile Bit Set on sale for $21.13. Shipping is free with Prime or on orders of $25 or more. Thanks to Deal Hunter Rokket for finding this deal. Note, this item is part of an Amazon promotion for 20% off 2 Bosch items; you can get 2 of these sets for $33.81 ($16.91 per set; discount automatically applied at checkout) or select a different item as your 2nd item to get 20% off both (thanks FancySwing6015).