Greenlee
Greenlee 825-2 Hole Saw 2 in Variable Pitch pneumatic accessory
Cuts steel with a 2 in bi-metal variable-pitch blade and 1 5/8 in depth
- Cuts steel cleanly with bi-metal variable-pitch teeth
- 2-inch diameter handles common pipe and conduit sizes
- 1-5/8 inch cutting depth suits thick-walled material
- 3/8, 7/16 and 1/2 inch shank options fit multiple drills
- Includes 1/4-inch pilot drill for accurate hole starting
Greenlee 825-2 bi-metal hole saw
The Greenlee 825-2 is a 2 in. bi-metal hole saw designed for cutting steel. Its variable 4/6 TPI tooth pattern suits trade professionals who need clean holes in mild or stainless sheet metal. The saw accepts 3/8 in., 7/16 in. or 1/2 in. shank arbors, which are sold separately. A 1/4 in. pilot drill is required to start the cut.
Sustained cutting in steel
Variable pitch teeth reduce harmonic vibration, so the saw runs smoother during long cuts through steel plate. The bi-metal edge resists heat buildup better than carbon steel, maintaining tooth hardness when the workpiece gets hot. Maximum cutting depth reaches 1 5/8 in., allowing through-holes in thick sections without pausing to clear chips. Steady feed pressure keeps teeth engaged and prevents work hardening.
Heat, noise and power draw
Bi-metal construction dissipates heat into the chip rather than the tool body, keeping the arbor and chuck cooler during repeated holes. Lower vibration from the variable tooth spacing cuts noise levels compared with constant-pitch saws. Because the saw is not impact rated, it is intended for rotary drilling only; hammer action will damage the teeth. Match the drill speed to the diameter for best life.
Highlights
- Cuts steel cleanly with bi-metal variable-pitch teeth
- 2-inch diameter handles common pipe and conduit sizes
- 1-5/8 inch cutting depth suits thick-walled material
- 3/8, 7/16 and 1/2 inch shank options fit multiple drills
- Includes 1/4-inch pilot drill for accurate hole starting
Specifications
| Brand | GREENLEE |
|---|
Questions about this item
How much vibration and heat does the 2 in variable-pitch hole saw produce during extended cutting?
The bi-metal teeth with a 4/6 tooth-per-inch pattern reduce vibration and heat build-up when cutting steel, letting the saw run cooler over long sessions.
Which arbor and pilot drill are needed to mount this 2 in hole saw?
An arbor with a 3/8 in, 7/16 in or 1/2 in shank and a 1/4 in diameter by 4 1/4 in long pilot drill must be supplied separately.
Will the 3/8 in, 7/16 in or 1/2 in shank options fit the chuck on my older drill press?
The three shank sizes cover most common drill-press chucks, so the saw can be mounted on legacy machines without an adapter.
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