Precision Twist Taper Length Drill Parabolic #38 135 Deg HSS S/P L 4 5/8" Flute 2 1/2" Precision Twist Drill Parabolic flute drill bits, these have a large flute space for greater chip flow and improved coolant flow to the drill bit point. These factors allow bits to drill deeper and produce closer hole tolerances more quickly than regular jobbers bits. A large cross section increases rigidity and strength.
Precision Twist Taper Length Drill Parabolic #50 135 Deg HSS S/P L 3 3/4" Flute 2" Precision Twist Drill Parabolic flute drill bits, these have a large flute space for greater chip flow and improved coolant flow to the drill bit point. These factors allow bits to drill deeper and produce closer hole tolerances more quickly than regular jobbers bits. A large cross section increases rigidity and strength.
Precision Twist Taper Length Drill Parabolic #16 135 Deg HSS S/P L 5 3/4" Flute 3 3/8" Precision Twist Drill Parabolic flute drill bits, these have a large flute space for greater chip flow and improved coolant flow to the drill bit point. These factors allow bits to drill deeper and produce closer hole tolerances more quickly than regular jobbers bits. A large cross section increases rigidity and strength.
PARABOLIC Jobbers Length Drills 31/64" Parabolic flute drills are designed for deep hole drilling (a deep hole is any hole that is deeper than 4 times the diameter of the drill bit). The special flute pattern is capable of drawing chips up quickly from deeper distances. This eliminates the need for frequent drill withdrawal to clear chips from the hole.
This is for a 118' Straight Shank Taper Length Drill Bit 1/4 x 6-1/8" - NEW - Sold by the each Flute length = 3" Overall length = 6-1/8" Taper length drills have longer flute-lengths and overall lengths than jobbers length drills. This drill is designed to perform well under wide variations in materials, equipment, and job conditions.The surface-treated finish provides good chip flow and abrasion resistance.
PARABOLIC Jobbers Length Drills 15/32" Parabolic flute drills are designed for deep hole drilling (a deep hole is any hole that is deeper than 4 times the diameter of the drill bit). The special flute pattern is capable of drawing chips up quickly from deeper distances. This eliminates the need for frequent drill withdrawal to clear chips from the hole.
PARABOLIC Jobbers Length Drills 3/8" Parabolic flute drills are designed for deep hole drilling (a deep hole is any hole that is deeper than 4 times the diameter of the drill bit). The special flute pattern is capable of drawing chips up quickly from deeper distances. This eliminates the need for frequent drill withdrawal to clear chips from the hole.
Precision Twist QC21CO 19/64" Parab FL Drill 135dg Spl Pt Cobalt HSS 3 1/16" Flute 4 3/8" L Parabolic flute drill bits have a large flute space for greater chip flow and improved coolant flow to the drill bit point. These factors allow bits to drill deeper and produce closer hole tolerances more quickly than regular jobber bits. A large cross section increases rigidity and strength.
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