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Ships within 48 hours · Estimated delivery Aug 1 - Aug 6
3/4" and 1/2" shafts
our sharp premium silicon carbide abrasive
Protective coating on the steel tape reduces corrosion from non-contact moisture and humidity
allowing high clamping pressure with less effort
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 3/4" and 1/2" shaftsUnique 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