“Hole in One” Hole Saw
A hole saw supplied with a dedicated arbor is always the right match, properly assembled and ready to use. BiMetal by Malco ensures vibration-free cuts in any machinable metal, including tool steels and stainless. A variable 4/6 pitched tooth configuration milled into a high speed steel edge and micro-welded to a shatterproof alloy steel body easily tackles nail embedded wood. A generous 1-7/8-inch (47.6 mm) cup depth allows cuts in wooden studs, joists and door slabs in one pass.
All BiMetal Hole Saw sizes feature 4/6 VARIABLE PITCH TEETH for aggressive cutting in all machinable materials.
High Speed 1/4-inch (6.4 mm) replacement pilot drill bit fits both original Hole-in-One hole saw with built-in arbor, and current 2-piece Hole-in-One with separate arbor.
Specifications
| Catalog # | Diameter in. (mm) | Cup Depth in. (mm) | Bit Diameter in. (mm) |
|---|---|---|---|
| H30 | 1-7/8 (47.6) | 1-15/16 (49.2) | 1/4 (6.4) |
| H32 | 2 (50.8) | 1-15/16 (49.2) | 1/4 (6.4) |
| H38 | 2-3/8 (60.3) | 1-15/16 (49.2) | 1/4 (6.4) |
| H44 | 2-3/4 (69.9) | 1-15/16 (49.2) | 1/4 (6.4) |
| HSB (Hole Saw Bit) | - | - | 1/4 (6.4) |
RECOMMENDED RPM CUTTING SPEEDS |
| CATALOG # | MILD STEEL | STAINLESS STEEL | TOOL AND CAST IRON | BRASS | ALUMINUM |
| H30 | 180 | 90 | 120 | 240 | 270 |
| H32 | 170 | 85 | 115 | 230 | 255 |
| H38 | 140 | 70 | 95 | 190 | 220 |
| H44 | 125 | 60 | 80 | 160 | 185 |
