Century Drill And Tool 5/8″ SDS Plus 2-Cutter Sonic Drill Bit Size:5/8″ [Thermoplastic Shell] NSI connectors have

[Thermoplastic Shell] NSI connectors have a flame-retardant UL 94V-2 thermoplastic body that delivers durable performance and electrical insulation

it holds your 48 inch level securely so it won’t get damaged

Set screw style

For use with lever or ball knob handle and privacy & passage doors with 2-3/8-inch backset

5 mil heavy-duty thickness that delivers strength

Century Drill And Tool 5/8″ SDS Plus 2-Cutter Sonic Drill Bit Size:5/8″ [Thermoplastic Shell] NSI connectors haveHeavy duty grade carbide tip for hardness and durability High temp copper brazing reduces the risk of losing carbide tip during difficult drilling applications Heat treated body to assure stability and uniformity from tip to shank Cutting Length 4 Overall Length 6