Triumph® ThunderBit® Heavy-Duty BP1HD Jobber Drill Bit, High Speed Steel, 7/16", 5-1/2" L, 4-1/16" Flute, 135° Point AngleUnique spiral flute design improves chip ejection and coolant flow to the point The heavy duty core guarantees increased strength and reduced breakage 135 self centering split point prevents walking" and provides quick penetration Friction reducting black & bronze oxide surface treatments for higher drilling speeds Specifications Material High Speed Steel Drill Size 7 16" Decimal Drill Size 0. 4375" Overall Length 5 1 2" Flute Length 4 1 16" Point

ergonomic set for any home or business

Made for weld grinding and blending

marking and color coding

89° C/-65°F - 300°F

Storage Volume

XGT® Batteries feature rigid rails with impact-resistant construction to secure the battery to the tool during high-demand applications

non-hardening brush-top sealant approved for use in aviation as well as automotive applications

Overload Protection prevents motor burnout due to current overload

Precision Ground

Internal brass components

Reduced shank

damaged or worn fasteners