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Alfa Tools ECO PRO Silver and Deming Drills are made of super high-speed steel and are ideal for portable drilling and drill presses, where the maximum chuck capacity is 1/2". They are precision ground for a high degree of concentricity between shank and body diameter, and have a 118° point, 3 flats on the shank and a black oxide finish. Not for enlarging existing holes. Made in the USA.
| PART # | SIZE | DEC. EQUIV. | LENGTH (FLUTE / OAL) |
|---|---|---|---|
| SD250403 | 9/16" | 0.5625" | 3-1/8" / 6" |
| SD250407 | 5/8" | 0.6250" | 3-1/8" / 6" |
| SD250411 | 11/16" | 0.6875" | 3-1/8" / 6" |
| SD250415 | 3/4" | 0.7500" | 3-1/8" / 6" |
| SD250417 | 13/16" | 0.8125" | 3-1/8" / 6" |
| SD250419 | 7/8" | 0.8750" | 3-1/8" / 6" |
| SD250421 | 15/16" | 0.9375" | 3-1/8" / 6" |
| SD250423 | 1" | 1" | 3-1/8" / 6" |
| SD250427 | 1-1/8" | 1.1250" | 3-1/8" / 6" |
| SD250431 | 1-1/4" | 1.2500" | 3-1/8" / 6" |
| SD250435 | 1-3/8" | 1.3750" | 3-1/8" / 6" |
| SD250439 | 1-1/2" | 1.5000" | 3-1/8" / 6" |
