Irwin 1881324 Impact Turbomax Bit Set, 10 Piece SpecialDiscount The Anti-calc system will help

The Anti-calc system will help extend the life of the iron while the Self Clean system flushes out loose mineral deposits ensuring optimal performance for the iron

but below 90 for application

NO Tray Rotation

This will prevent the chance of hitting it with a lawnmower

5" wheels for most asphalt shingle roofs

Irwin 1881324 Impact Turbomax Bit Set, 10 Piece SpecialDiscount The Anti-calc system will helpHighlights: 10 Piece One piece construction withstands higher torque loads than standard quick change bits Exclusive Turbomax tip minimizes walking, delivers 10X faster starts, and stays sharp longer* Made from premium high speed steel with black oxide finish for added corrosion resistance 1 4" quick change shank is designed to work with impact drivers, and reduces slipping in standard drill chucks Includes: 1 8" (2), 9 64", 5 32", 11 64", 3 16", 7