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These hollow drill bits are compatible with Seybold standard paper drills. They are for drills with 2-1/4" stack capacity.
Diameter: | 1/4" |
Shaft Length: | 2-1/4" |
Drill Bit Capacity: | 2-1/4" |
Muller Martini DS 235 (20") $343.00 |
7/32" Iram / Sterling Standard $33.95 |