12 New Large Clock Broaches. This is a new set of 12 large clock broaches. These broaches are five sided and have a regular taper with a perfect finish. You receive: 1 That measures approximately 2 7/8" long and about 0.75 mm thick 1 That measures approximately 2 15/16" long and about 0.95 mm thick 1 That measures approximately 3 1/4" long and about 1.05 mm thick 1 That measures approximately 3 3/8" long and about 1.25 mm thick 1 That measures approximately 3 5/8" long and about 1.6 mm thick 1 That measures approximately 3 11/16" long and about 1.7 mm thick 1 That measures approximately 3 3/4" long and about 1.85 mm thick 1 That measures approximately 3 7/8" long and about 2.05 mm thick 1 That measures approximately 4 1/4" long and about 2.2 mm thick 1 That measures approximately 4 3/8" long and about 2.6 mm thick 1 That measures approximately 4 5/8" long and about 3.4 mm thick 1 That measures approximately 4 7/8" long and about 3.85 mm thick.