Klein Tools 31900 Bi-Metal Hole Saw, 6-3/8-Inch Personal Protection & Safety the attachment is engineered for

the attachment is engineered for maximum dust extraction

Designed for use on Krone blocks and network infrastructure

4-Inch (102 mm) leather and neoprene cuffs with side vents

Single-ended impact socket with hands-free adjustment between 1-1/8-Inch and 15/16-Inch hex sizes

Klein Tools 31900 Bi-Metal Hole Saw, 6-3/8-Inch Personal Protection & Safety the attachment is engineered forKlein's Bi Metal Hole Saws are optimized for cutting steel. The blades provide the fastest, most consistent and longest lasting cutting on the market today. Heavy duty construction includes thicker 5 mil back plates to stand up to abuse much better. Cuts precise holes in drywall and ceiling tile Recommended for most major brands of 6 Inch (152 mm) recessed lighting fixtures For use in drywall, ceiling tile, steel, wood, plastic and stainless steel