New vintage unused Iron Shark Tools USA 17 Piece B&G S&D drill bits Professional Grade 1/2 to 1" by 1/32nd inch still in plastic sleeves in their original box with metal case as shown. These are heavy drill bits weighing over 8 pounds in their case. The specs are sizes 1/2" to 1" by 1/32" with 1/2" shank. Tri flat shank for sure grip. 135 degree split point self centering. Black & Gold surface treatments Premium High Speed Steel. They come with an Indexed Aluminum Storage Case. Please see photos and email with any questions. Thanks for looking.