514-336-3820
514-745-1764
Ultra Cut Super Premium 3 Flats on Shank, 3/16" & Larger
250-UB
Special Hi-Molybdenum
tool steel.
135° split point for fast penetration
and accurate starting without center punch.
Precision ground point, flutes, body,
clearance and drill diameter for the ultimate in accuracy
and performance.
Body and clearance are gold surface
treated for maximum lubricity.
Heat treated at 2185° F and then
nitro-carburize finished at 950° F to be measurably
harder than high speed steel.
Space age nitro-carburized steel withstands
substantially higher drilling temperatures while maintaining
sharpness.
Especially designed for hand held drills.
Flats on shank give positive chuck-grip.
Recommended for use in work hardening
grades of stainless steel and other hard metal drilling
applications.
Ultra Cut Super Premium 3 Flats on Shank, Drills Will Fit 3/8" Chuck
258-UB
Same drill type as Type 250-UB but with a 3/8"
reduced shank.
Flats on shank
| 250-UB Part # |
258-UB Part # |
Diameter | Overall Length |
Flute Length |
| 22860 | 1/16 | 1-7/8 | 7/8 | |
| 22870 | 5/64 | 2 | 1 | |
| 22880 | 3/32 | 2-1/4 | 1-1/4 | |
| 86950 | 7/64 | 2-3/8 | 1-5/16 | |
| 86960 | 1/8 | 2-1/2 | 1-7/16 | |
| 86970 | 9/64 | 2-5/8 | 1-9/16 | |
| 86980 | 5/32 | 2-3/4 | 1-11/16 | |
| 86990 | 11/64 | 2-7/8 | 1-13/16 | |
| 87000 | 3/16 | 3 | 1-7/8 | |
| 87010 | 13/64 | 3-1/8 | 1-15/16 | |
| 87020 | 7/32 | 3-1/4 | 2 | |
| 87030 | 15/64 | 3-3/8 | 2-1/16 | |
| 87040 | 1/4 | 3-1/2 | 2 | |
| 87050 | 17/64 | 3-5/8 | 2-1/8 | |
| 87060 | 9/32 | 3-3/4 | 2-1/4 | |
| 87070 | 19/64 | 3-7/8 | 2-3/8 | |
| 87080 | 5/16 | 4 | 2-1/2 | |
| 87090 | 21/64 | 4-1/16 | 2-9/16 | |
| 87100 | 11/32 | 4-1/8 | 2-5/8 | |
| 87110 | 23/64 | 4-3/16 | 2-11/16 | |
| 87120 | 3/8 | 4-1/4 | 2-11/16 | |
| 87130 | 25/64 | 4-5/16 | 2-3/4 | |
| 87140 | 81560+ | 13/32 | 4-3/8 | 2-13/16 |
| 87150 | 81570 | 27/64 | 4-7/16 | 2-7/8 |
| 87160 | 81580 | 7/16 | 4-1/2 | 2-15/16 |
| 87170 | 81590 | 29/64 | 4-5/8 | 3 |
| 87180 | 81600 | 15/32 | 4-3/4 | 3-1/8 |
| 87190 | 81610 | 31/64 | 4-7/8 | 3-1/4 |
| 87200 | 81620 | 1/2 | 5 | 3-3/8 |
Due to the fact that we are continuously improving our products, the descriptions, illustrations,
specifications,dimensions, and part numbers are subject to change without notice.
Every effort has been made to have the information on this site error free, we can not be responsible for errors and or omissions.
Airtek (1990) Ltée, 5750 Donahue St., Montreal, Qc, Canada, H4S 1C1
Tel: 514-336-3820