Starrett 7/8" Bi-Metal Variable Pitch Hole Saw with QuickShot Arbor

Hardened, Heat Resistant, Positive Rake Hss Teeth With Alloy Backing. Strong And Shatter Resistant. Economically Cuts Wood, Metal And Steel. For Hand Held Or Fixed Drills. 2" Cutting Depth. Nvp Progressive Pitch Technology Provides The Fastest Cutting Rates On The Market, Maximizing Your Productivity.
Aggressive material penetration and swarf clearance, removing the need to carry a Constant and Variable Pitch Hole Saw
Constructed of hardened steel and abrasion resisting High Speed Steel Teeth with a tough alloy body and cap
The complete multi-purpose saw with a cutting depth of 51mm (2" )
For use on a wide range of materials, regardless of thickness.
NVP tooth geometry delivers maximum cut rate, chip flow and service life
Reduced vibration and smooth cutting action for excellent ergonomics, reducing user fatigue