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  6. Step Drill Bits High Speed Steel, or Cobalt, Inch, Metric, Number Sizes, Jobber or Taper Length ID 923-


Step Drill Bits High Speed Steel, or Cobalt, Inch, Metric, Number Sizes, Jobber or Taper Length ID 923-

Part Number: 923-
Step Drill Bits High Speed Steel, or Cobalt, Inch, Metric, Number Sizes, Jobber or Taper Length ID 923-
Drill Bit Step Drills, Metric, Inch, Jobber, Taper Length
Your Price: $17.99USD
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Step Drill Bits High Speed Steel, or Cobalt, Inch, Metric, Number Sizes, Jobber or Taper Length ID 923-

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Step Drill Bits High Speed Steel, or Cobalt, Inch, Metric, Number Sizes, Jobber or Taper Length ID 923-Step Drills High Speed Steel & Cobalt, Metric & Inch Sizes Jobber & Taper Length
Hardware > Tool Accessories > Drill Accessories > Drill Bits
Drill Feed and Speed Chart
Tap Drill Chart
A step drill bit is a drill bit that has the tip ground down to a different diameter. The transition between this ground diameter and the original diameter is either straight, to form a counterbore, or angled, to form a countersink. The advantage to this style is that both diameters have the same flute characteristics, which keeps the bit from clogging when drilling in softer materials, such as aluminum; in contrast, a drill bit with a slip-on collar does not have the same benefit. Most of these bits are custom-made for each application, which makes them more expensive.

Taper Length Drills are general purpose drills with increased cutting length. Taper Length Drills have the same flute length as Taper Shank Drills. Also known as long length drills, taper length drills have a longer flute and overall lengths compared to jobber drills making them more useful in drilling deep holes 370 1/2-20 HSS Jobber Step Drill 45 Degree Chamfer
370 1/4-20 HSS Jobber Step Drill 45 Degree Chamfer
370 1/4-28 HSS Jobber Step Drill 45 Degree Chamfer
370 10-24 HSS Jobber Step Drill 45 Degree Chamfer
370 10-32 HSS Jobber Step Drill 45 Degree Chamfer
370 12-24 HSS Jobber Step Drill 45 Degree Chamfer
370 3/8-16 HSS Jobber Step Drill 45 Degree Chamfer
370 3/8-24 HSS Jobber Step Drill 45 Degree Chamfer
370 4-40 HSS Jobber Step Drill 45 Degree Chamfer
370 5-40 HSS Jobber Step Drill 45 Degree Chamfer
370 5/16-18 HSS Jobber Step Drill 45 Degree Chamfer
370 5/16-24 HSS Jobber Step Drill 45 Degree Chamfer
370 5/8-11 HSS Jobber Step Drill 45 Degree Chamfer
370 6-32 HSS Jobber Step Drill 45 Degree Chamfer
370 7/16-14 HSS Jobber Step Drill 45 Degree Chamfer
370 7/16-20 HSS Jobber Step Drill 45 Degree Chamfer
370 8-32 HSS Jobber Step Drill 45 Degree Chamfer
370 8-36 HSS Jobber Step Drill 45 Degree Chamfer
370S JOB STEP DR SET #6-3/8 TAP SCREW
371.5 HSS Jobber Step Drill / Cap Screw Counterbore
371.25 HSS Jobber Step Drill / Cap Screw Counterbore
371 10 HSS Jobber Step Drill / Cap Screw Counterbore
371.375 HSS Jobber Step Drill / Cap Screw Counterbore
371 4 HSS Jobber Step Drill / Cap Screw Counterbore
371 5 HSS Jobber Step Drill / Cap Screw Counterbore
371.3125 HSS Jobber Step Drill / Cap Screw Counterbore
371.625 HSS Jobber Step Drill / Cap Screw Counterbore
371 6 HSS Jobber Step Drill / Cap Screw Counterbore
371.4375 HSS Jobber Step Drill / Cap Screw Counterbore
371 8 HSS Jobber Step Drill / Cap Screw Counterbore
371S JOB STEP DR SET #6-3/8 CAP SCREW
372.5 HSS Jobber Step Drill 82 Degree
372.25 HSS Jobber Step Drill 82 Degree
372 10 HSS Jobber Step Drill 82 Degree
372.375 HSS Jobber Step Drill 82 Degree
372 4 HSS Jobber Step Drill 82 Degree
372 5 HSS Jobber Step Drill 82 Degree
372.3125 HSS Jobber Step Drill 82 Degree
372 6 HSS Jobber Step Drill 82 Degree
372.4375 HSS Jobber Step Drill 82 Degree
372 8 HSS Jobber Step Drill 82 Degree
372S JOB STEP DRL SET #6-3/8 FLAT HD
370C 1/4-20 Cobalt Jobber Step Drill 45 Degree Chamfer
370C 10-24 Cobalt Jobber Step Drill 45 Degree Chamfer
370C 10-32 Cobalt Jobber Step Drill 45 Degree Chamfer
370C 12-24 Cobalt Jobber Step Drill 45 Degree Chamfer
370C 3/8-16 Cobalt Jobber Step Drill 45 Degree Chamfer
370C 5/16-18 Cobalt Jobber Step Drill 45 Degree Chamfer
370C 6-32 Cobalt Jobber Step Drill 45 Degree Chamfer
370C 8-32 Cobalt Jobber Step Drill 45 Degree Chamfer
370CS #6-3/8 COBALT TAP DRL SET
371C 1/2 Cobalt Jobber Step Drill / Cap Srew Counterbore
371C 1/4 Cobalt Jobber Step Drill / Cap Srew Counterbore
371C 10 Cobalt Jobber Step Drill / Cap Srew Counterbore
371C 3/8 Cobalt Jobber Step Drill / Cap Srew Counterbore
371C 5/16 Cobalt Jobber Step Drill / Cap Srew Counterbore
371C 6 Cobalt Jobber Step Drill / Cap Srew Counterbore
371C 7/16 Cobalt Jobber Step Drill / Cap Srew Counterbore
371C 8 Cobalt Jobber Step Drill / Cap Srew Counterbore
371CS #6-3/8 CO CAPSCREW STEP DRL SET
372C 1/2 Cobalt Jobber Step Drill 82 Degree Flat Head
372C 1/4 Cobalt Jobber Step Drill 82 Degree Flat Head
372C 10 Cobalt Jobber Step Drill 82 Degree Flat Head
372C 3/8 Cobalt Jobber Step Drill 82 Degree Flat Head
372C 5/16 Cobalt Jobber Step Drill 82 Degree Flat Head
372C 6 Cobalt Jobber Step Drill 82 Degree Flat Head
372C 7/16 Cobalt Jobber Step Drill 82 Degree Flat Head
372C 8 Cobalt Jobber Step Drill 82 Degree Flat Head
372CS #6-3/8 CO FLATHEAD SCR STEP SET
370M 10X1.50 HSS Metric Jobber Step Drill 45 Degree Chamfer
370M 12X1.75 HSS Metric Jobber Step Drill 45 Degree Chamfer
370M 14X2 HSS Metric Jobber Step Drill 45 Degree Chamfer
370M 16X2 HSS Metric Jobber Step Drill 45 Degree Chamfer
370M 3X50 HSS Metric Jobber Step Drill 45 Degree Chamfer
370M 4X70 HSS Metric Jobber Step Drill 45 Degree Chamfer
370M 5X80 HSS Metric Jobber Step Drill 45 Degree Chamfer
370M 6X1 HSS Metric Jobber Step Drill 45 Degree Chamfer
370M 8X1.25 HSS Metric Jobber Step Drill 45 Degree Chamfer
370MS 3-10MM METRIC TAP DRL SET
371M 10.00 HSS Metric Jobber Step Drill / CapScrew Counterbore
371M 12.00 HSS Metric Jobber Step Drill / CapScrew Counterbore
371M 14.00 HSS Metric Jobber Step Drill / CapScrew Counterbore
371M 16.00 HSS Metric Jobber Step Drill / CapScrew Counterbore
371M 3.00 HSS Metric Jobber Step Drill / CapScrew Counterbore
371M 4.00 HSS Metric Jobber Step Drill / CapScrew Counterbore
371M 5.00 HSS Metric Jobber Step Drill / CapScrew Counterbore
371M 6.00 HSS Metric Jobber Step Drill / CapScrew Counterbore
371M 8.00 HSS Metric Jobber Step Drill / CapScrew Counterbore
371MS 3-10MM METRIC STEP DRL SET
374.25 HSS Subland 118 Degree Step DrillS
374 10 HSS Subland 118 Degree Step DrillS
374.375 HSS Subland 118 Degree Step DrillS
374.3125 HSS Subland 118 Degree Step DrillS
374 6 HSS Subland 118 Degree Step DrillS
374 8 HSS Subland 118 Degree Step DrillS
470 1/2-13 HSS Taper Length Step Drill 45 Degree
470 1/2-20 HSS Taper Length Step Drill 45 Degree
470 1/4-20 HSS Taper Length Step Drill 45 Degree
470 1/4-28 HSS Taper Length Step Drill 45 Degree
470 10-24 HSS Taper Length Step Drill 45 Degree
470 10-32 HSS Taper Length Step Drill 45 Degree
470 3/8-16 HSS Taper Length Step Drill 45 Degree
470 3/8-24 HSS Taper Length Step Drill 45 Degree
470 4-40 HSS Taper Length Step Drill 45 Degree
470 5-40 HSS Taper Length Step Drill 45 Degree
470 5/16-18 HSS Taper Length Step Drill 45 Degree
470 5/16-24 HSS Taper Length Step Drill 45 Degree
470 6-32 HSS Taper Length Step Drill 45 Degree
470 7/16-14 HSS Taper Length Step Drill 45 Degree
470 7/16-20 HSS Taper Length Step Drill 45 Degree
470 8-32 HSS Taper Length Step Drill 45 Degree
470 8-36 HSS Taper Length Step Drill 45 Degree
470S HS TL STEP DRILL SET #6-3/8 TAP
471.5 HSS Taper Length Step Drill / Cap Srew Counterbore
471.25 HSS Taper Length Step Drill / Cap Srew Counterbore
471 10 HSS Taper Length Step Drill / Cap Srew Counterbore
471.375 HSS Taper Length Step Drill / Cap Srew Counterbore
471.3125 HSS Taper Length Step Drill / Cap Srew Counterbore
471.625 HSS Taper Length Step Drill / Cap Srew Counterbore
471 6 HSS Taper Length Step Drill / Cap Srew Counterbore
471 8 HSS Taper Length Step Drill / Cap Srew Counterbore
471S HS TL STEP DRL SET #6-3/8 CAP SC

 A step drill bit is a drill bit that has the tip ground down to a different diameter. The transition between this ground diameter and the original diameter is either straight, to form a counterbore, or angled, to form a countersink. The advantage to this style is that both diameters have the same flute characteristics, which keeps the bit from clogging when drilling in softer materials, such as aluminum; in contrast, a drill bit with a slip-on collar does not have the same benefit. Most of these bits are custom-made for each application, which makes them more expensive

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