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183-UB
Special Hi-Molybdenum tool steel, gold surface treated
body, flute and point for maximum lubricity. Super CHIPFREE™
point is precision ground at a 60° angle for gradual
penetration to avoid cracking and chipping of the acrylic
material. Special 0° rake angle on cutting edge eliminates
"grabbing" when drill breaks through plastic,
acrylic or laminate surfaces. All sizes over 1/4"
have 1/4" shanks.
PART
NO. |
DIAMETER |
OVERALL
LENGTH |
FLUTE
LENGTH |
| 31500 |
1/8 |
2-1/2 |
1-3/8 |
| 31510 |
5/32 |
2-7/8 |
1-3/4 |
| 31520 |
3/16 |
3-3/16 |
2 |
| 31530 |
1/4 |
3-9/16 |
2-5/16 |
| 31540 |
5/16 |
3-5/16 |
1-5/8 |
| 31550 |
3/8 |
3-5/8 |
1-15/16 |
| 31560 |
7/16 |
4 |
2-3/16 |
| 31570 |
1/2 |
4-1/4 |
2-7/16 |
| 31580 |
AD-7 |
7 pc
set: 1/8" thru 1/2" by 16ths in metal index. |
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