BOSCH 3 pc. SDS-plus Bulldog Self-Sharpening Chisel Set is $29.09 at Amazon, down from the store's own list price of $66.89. That's 57% off ($37.80 less). We last checked this price on Nov 8, 10:06 PM ET. Prices at the store can change at any time, so check before you buy. Brand: Bosch. Type: Power tools. Picked for all trades and Carpentry & Framing.