Now In: Tools → Tri-Ultra Cut → 4 Flute Core Drills: Type 284-UB 1/2" Shank — Hole Hog
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Special Hi-Molybdenum tool steel, gold surface treated body and clearance for maximum lubricity. close tolerance construction. This tool is designed for enlarging existing holes exclusively. The 4 flute design eliminates the catching and hogging-in experienced with standard S&D drills when breaking through thinner materials such as truck frames. These core drills may replace tapered reamers in many applications.
| EDP# |
Diameter
(Inches) |
Minimum
Starting
Hole
Size |
Overall
Length
(Inches) |
Flute
Length
(Inches) |
Std.
Pack |
| 822030 |
3/8 |
1/2 |
4-5/16 |
1-7/8 |
1 |
| 822040 |
1/2 |
5/16 |
4-5/16 |
1-7/8 |
1 |
| 822060 |
9/16 |
3/8 |
4-5/16 |
1-7/8 |
1 |
| 822080 |
5/8 |
25/64 |
4-5/16 |
1-7/8 |
1 |
| 822100 |
11/16 |
7/16 |
4-5/16 |
1-7/8 |
1 |
| 822120 |
3/4 |
15/32 |
4-5/16 |
1-7/8 |
1 | HOLE HOG SETSA selection of core drills and companion (minimum starting hole size) pilot drills in a black steel index
| EDP# |
Set# |
Contents |
| 838860 |
SP-6HHS |
1 each; 284-UB core drill sizes: 3/8, 1/2 & 5/8.
250-UB drill sizes: 1/4, 5/16 & 25/64 |
| 838870 |
SP-6HHL |
1 each; 284-UB core drill sizes: 1/2, 5/8 & 3/4.
250-UB drill sizes: 5/16, 25/64 & 15/32 |
| 838880 |
SP-8HH |
1 each; 284-UB drill sizes: 3/8, 1/2, 5/8 & 3/4.
250-UB drill sizes: 1/4, 5/16, 25/64 & 15/32. |
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