Heavy-Duty Standard Self-Feed Drill Bit, 2-1/8", 4-1/2" Length, 7/16" Hex Shank Removable Sleeve Anchors wide range of aggregates and

wide range of aggregates and abrasive materials

2-1/8" Head Height ideal for driving fasteners in confined spaces

Helical-cut steel and heat-treated gears for long life and durability

Easy belt tracking system for quick changing of belts

Heavy-Duty Standard Self-Feed Drill Bit, 2-1/8", 4-1/2" Length, 7/16" Hex Shank Removable Sleeve Anchors wide range of aggregates andDelivers speed and endurance for repetitive drilling of large holes Center feed screw pilots the bit and allows the bit to pull through fast Inside cutting plane shaves the hole radius for clean, smooth holes without pressure Bits are resharpenable and include two removable, replaceable feed screws Coated with a rust inhibitor Specifications Diameter 2 1 8" Overall Length 4 1 2" Shank Size 7 16" Hex Country Of Origin China