Heavy-Duty Standard Self-Feed Drill Bit, 2-1/8", 4-1/2" Length, 7/16" Hex ShankDelivers 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

Designed for professional DIYers who want a quality tool at an alternative price point

you can make smooth

Used primarily by locksmiths in repairing and filing ward notches in keys

Enclosed ratchet head design resists dirt infiltration for continuous and efficient execution

Set Size Range Max

Do not use for overhead lifting or hoisting

secure set-up

3/8" (10mm)

Up to 78 Cuts per charge: in 1-5/8" Unistrut

spare blades and much more

Powerstate™ Brushless Motor delivers the most power

1" tall body to withstand aggressive material demolition and remodeling