Triumph® ThunderBit® Heavy-Duty BP1HD Jobber Drill Bit, High Speed Steel, 7/16", 5-1/2" L, 4-1/16" Flute, 135° Point Angle Demolition & Rotary Hammers Parts & Accessories Foam Rail ™ crossbars were

Foam Rail ™ crossbars were designed to work with all ZipWall® spring loaded poles

3-in-1 bit solution creates fast clean holes in all metal applications

Protective coating on the steel tape reduces corrosion from non-contact moisture and humidity

Continuously variable temperature range

Triumph® ThunderBit® Heavy-Duty BP1HD Jobber Drill Bit, High Speed Steel, 7/16", 5-1/2" L, 4-1/16" Flute, 135° Point Angle Demolition & Rotary Hammers Parts & Accessories Foam Rail ™ crossbars wereUnique 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