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FREE Shipping from the USA. | Most orders ship within 24 hours.

Imperial Drill Bits

Imperial drill bits are often known as inch drill bits. They use inches as the unit of measurement when determining specifications about the bit like diameter and length. If diameter measurements are printed on these bits, they will be in inches, or fraction of inches.

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Precision Twist Drill SPR-120 1"D 8"L HSS Straight Shank & Taper Length 120° Spot Drill Bit

Precision Twist Drill
$233.00
$233.00 - $233.00
$233.00
$145.59
$145.59 - $145.59
$145.59
In stock

Features: Bright (uncoated) High Speed Steel Tool Material 1×D Usable Tool Depth to Diameter Ratio Spot Drill Point 120° Cylindrical Shank / Strai...

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$233.00
$233.00 - $233.00
$233.00
$145.59
$145.59 - $145.59
$145.59
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Precision Twist Drill QC91P 37/64"D 10-3/4"L Parabolic HSS Straight Shank & Taper Length Drill Bit

Precision Twist Drill
$239.00
$239.00 - $239.00
$239.00
$148.48
$148.48 - $148.48
$148.48
In stock

Features: Bright (uncoated) High Speed Steel Tool Material ANSI – Tap Standards 6×D Usable Tool Depth to Diameter Ratio Drill Point 135° Cylindrica...

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$239.00
$239.00 - $239.00
$239.00
$148.48
$148.48 - $148.48
$148.48
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Precision Twist Drill 209CO 51/64"D 8-3/4"L HSS-E #3MT Cobalt Jobber Drill Bit

Precision Twist Drill
$262.00
$262.00 - $262.00
$262.00
$163.18
$163.18 - $163.18
$163.18
In stock

Features: Bronze Tempered (Bronze Oxide) Surface Treatment High Speed Cobalt Steel Tool Material ANSI – Tap Standards 4×D Usable Tool Depth to Dia...

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$262.00
$262.00 - $262.00
$262.00
$163.18
$163.18 - $163.18
$163.18
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Precision Twist Drill 209CO 7/8"D 10-3/4"L #3MT Cobalt Jobber Drill Bit

Precision Twist Drill
$284.00
$284.00 - $284.00
$284.00
$142.79
$142.79 - $142.79
$142.79
In stock

Features: Bronze Tempered (Bronze Oxide) Surface Treatment High Speed Cobalt Steel Tool Material ANSI – Tap Standards 4×D Usable Tool Depth to Dia...

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$284.00
$284.00 - $284.00
$284.00
$142.79
$142.79 - $142.79
$142.79
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Precision Twist Drill QC91P 11/16"D 9-1/4"L Parabolic HSS Straight Shank & Taper Length Drill Bit

Precision Twist Drill
$305.00
$305.00 - $305.00
$305.00
$159.29
$159.29 - $159.29
$159.29
In stock

Features: Bright (uncoated) High Speed Steel Tool Material ANSI – Tap Standards 6×D Usable Tool Depth to Diameter Ratio Drill Point 135° Cylindric...

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$305.00
$305.00 - $305.00
$305.00
$159.29
$159.29 - $159.29
$159.29
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Precision Twist Drill 209 1-11/64"D 13"L HSS #4MT Drill Bit

Precision Twist Drill
$316.00
$316.00 - $316.00
$316.00
$189.95
$189.95 - $189.95
$189.95
In stock

Features: Steam Tempered (Steam Oxide) Surface Treatment High Speed Steel Tool Material ANSI – Tap Standards 4×D Usable Tool Depth to Diameter Ra...

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$316.00
$316.00 - $316.00
$316.00
$189.95
$189.95 - $189.95
$189.95
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Precision Twist Drill R51 1-9/64"D 11-7/8"L HSS Straight Shank & Taper Length Drill Bit

Precision Twist Drill
$347.00
$347.00 - $347.00
$347.00
$176.65
$176.65 - $176.65
$176.65
In stock

Features: Steam Tempered (Steam Oxide) Surface Treatment High Speed Steel Tool Material ANSI – Tap Standards 6×D Usable Tool Depth to Diameter Rat...

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$347.00
$347.00 - $347.00
$347.00
$176.65
$176.65 - $176.65
$176.65
Save 49% Save %
Save 49% Save %

Precision Twist Drill T400 1"D 11"L 4 Flute HSS #3MT Drill Bit

Precision Twist Drill
$349.00
$349.00 - $349.00
$349.00
$177.47
$177.47 - $177.47
$177.47
In stock

Features: Steam Tempered (Steam Oxide) Surface Treatment High Speed Steel Tool Material ANSI – Tap Standards Right Hand Rotation / Cutting Morse T...

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$349.00
$349.00 - $349.00
$349.00
$177.47
$177.47 - $177.47
$177.47
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Save 42% Save %

Precision Twist Drill M51CO 61/64"D 11"L HSS-E Cobalt Straight Shank & Taper Length Drill Bit

Precision Twist Drill
$406.00
$406.00 - $406.00
$406.00
$234.59
$234.59 - $234.59
$234.59
In stock

Features: Bronze Tempered (Bronze Oxide) Surface Treatment High Speed Cobalt Steel Tool Material ANSI – Tap Standards 6×D Usable Tool Depth to Dia...

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$406.00
$406.00 - $406.00
$406.00
$234.59
$234.59 - $234.59
$234.59
Save 42% Save %
Save 52% Save %

Precision Twist Drill R51 1-3/8"D 14-1/2"L HSS Straight Shank & Taper Length Drill Bit

Precision Twist Drill
$504.00
$504.00 - $504.00
$504.00
$241.53
$241.53 - $241.53
$241.53
In stock

Features: Steam Tempered (Steam Oxide) Surface Treatment High Speed Steel Tool Material ANSI – Tap Standards 6×D Usable Tool Depth to Diameter Rat...

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$504.00
$504.00 - $504.00
$504.00
$241.53
$241.53 - $241.53
$241.53
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Precision Twist Drill R51 1-7/16"D 14-3/4"L HSS Straight Shank & Taper Length Drill Bit

Precision Twist Drill
$602.00
$602.00 - $602.00
$602.00
$298.61
$298.61 - $298.61
$298.61
In stock

Features: Steam Tempered (Steam Oxide) Surface Treatment High Speed Steel Tool Material ANSI – Tap Standards 6×D Usable Tool Depth to Diameter Rat...

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$602.00
$602.00 - $602.00
$602.00
$298.61
$298.61 - $298.61
$298.61
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Save 45% Save %

Precision Twist Drill 209 1-9/16"D 16-5/8"L HSS #5MT Jobber Drill Bit

Precision Twist Drill
$609.00
$609.00 - $609.00
$609.00
$335.25
$335.25 - $335.25
$335.25
In stock

Features: Steam Tempered (Steam Oxide) Surface Treatment High Speed Steel Tool Material ANSI – Tap Standards 4×D Usable Tool Depth to Diameter Rat...

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$609.00
$609.00 - $609.00
$609.00
$335.25
$335.25 - $335.25
$335.25
Save 45% Save %
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Precision Twist Drill R40 1-3/4"D 8"L HSS Straight Shank & Stub Length Drill Bit

Precision Twist Drill
$611.00
$611.00 - $611.00
$611.00
$302.58
$302.58 - $302.58
$302.58
In stock

Features: Steam Tempered (Steam Oxide) Surface Treatment High Speed Steel Tool Material ANSI – Tap Standards 2.5×D Usable Tool Depth to Diameter R...

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$611.00
$611.00 - $611.00
$611.00
$302.58
$302.58 - $302.58
$302.58
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Save 51% Save %

Precision Twist Drill 209CO 1-11/64"D 13"L HSS-E #4MT Cobalt Jobber Drill Bit

Precision Twist Drill
$666.00
$666.00 - $666.00
$666.00
$326.82
$326.82 - $326.82
$326.82
In stock

Features: Bronze Tempered (Bronze Oxide) Surface Treatment High Speed Cobalt Steel Tool Material ANSI – Tap Standards 4×D Usable Tool Depth to Dia...

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$666.00
$666.00 - $666.00
$666.00
$326.82
$326.82 - $326.82
$326.82
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Save 54% Save %

Precision Twist Drill R40 1-13/16"D 8-1/4"L HSS Straight Shank & Stub Length Drill Bit

Precision Twist Drill
$670.00
$670.00 - $670.00
$670.00
$310.13
$310.13 - $310.13
$310.13
In stock

Features: Steam Tempered (Steam Oxide) Surface Treatment High Speed Steel Tool Material ANSI – Tap Standards 2.5×D Usable Tool Depth to Diameter R...

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$670.00
$670.00 - $670.00
$670.00
$310.13
$310.13 - $310.13
$310.13
Save 54% Save %
Save 46% Save %

Precision Twist Drill 209CO 1-1/4"D 13-1/2"L HSS-E #4MT Cobalt Jobber Drill Bit

Precision Twist Drill
$682.00
$682.00 - $682.00
$682.00
$371.45
$371.45 - $371.45
$371.45
In stock

Features: Bronze Tempered (Bronze Oxide) Surface Treatment High Speed Cobalt Steel Tool Material ANSI – Tap Standards 4×D Usable Tool Depth to Dia...

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$682.00
$682.00 - $682.00
$682.00
$371.45
$371.45 - $371.45
$371.45
Save 46% Save %
Save 51% Save %

Precision Twist Drill R40 1-7/8"D 8-1/4"L HSS Straight Shank & Stub Length Drill Bit

Precision Twist Drill
$690.00
$690.00 - $690.00
$690.00
$337.40
$337.40 - $337.40
$337.40
In stock

Features: Steam Tempered (Steam Oxide) Surface Treatment High Speed Steel Tool Material ANSI – Tap Standards 2.5×D Usable Tool Depth to Diameter R...

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$690.00
$690.00 - $690.00
$690.00
$337.40
$337.40 - $337.40
$337.40
Save 51% Save %
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Precision Twist Drill R40 1-15/16"D 8-1/2"L HSS Straight Shank & Stub Length Drill Bit

Precision Twist Drill
$730.00
$730.00 - $730.00
$730.00
$355.03
$355.03 - $355.03
$355.03
In stock

Features: Steam Tempered (Steam Oxide) Surface Treatment High Speed Steel Tool Material ANSI – Tap Standards 2.5×D Usable Tool Depth to Diameter R...

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$730.00
$730.00 - $730.00
$730.00
$355.03
$355.03 - $355.03
$355.03
Save 51% Save %
Save 52% Save %

Precision Twist Drill R51 1-5/8"D 15-5/8"L HSS Straight Shank & Taper Length Drill Bit

Precision Twist Drill
$769.00
$769.00 - $769.00
$769.00
$372.23
$372.23 - $372.23
$372.23
In stock

Features: Steam Tempered (Steam Oxide) Surface Treatment High Speed Steel Tool Material ANSI – Tap Standards 6×D Usable Tool Depth to Diameter Rat...

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$769.00
$769.00 - $769.00
$769.00
$372.23
$372.23 - $372.23
$372.23
Save 52% Save %
Save 46% Save %

Precision Twist Drill 209CO 1-9/32"D 14-1/8"L HSS-E #4MT Cobalt Jobber Drill Bit

Precision Twist Drill
$799.00
$799.00 - $799.00
$799.00
$429.47
$429.47 - $429.47
$429.47
In stock

Features: Bronze Tempered (Bronze Oxide) Surface Treatment High Speed Cobalt Steel Tool Material ANSI – Tap Standards 4×D Usable Tool Depth to Dia...

View full details
$799.00
$799.00 - $799.00
$799.00
$429.47
$429.47 - $429.47
$429.47
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Precision Twist Drill 209 1-13/16"D 17-1/8"L HSS #5MT Jobber Drill Bit

Precision Twist Drill
$827.00
$827.00 - $827.00
$827.00
$443.36
$443.36 - $443.36
$443.36
In stock

Features: Steam Tempered (Steam Oxide) Surface Treatment High Speed Steel Tool Material ANSI – Tap Standards 4×D Usable Tool Depth to Diameter Rat...

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$827.00
$827.00 - $827.00
$827.00
$443.36
$443.36 - $443.36
$443.36
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Precision Twist Drill S209 1-3/4"D 16-1/4"L HSS #4MT Jobber Drill Bit

Precision Twist Drill
$840.00
$840.00 - $840.00
$840.00
$449.81
$449.81 - $449.81
$449.81
In stock

Features: Steam Tempered (Steam Oxide) Surface Treatment High Speed Steel Tool Material ANSI – Tap Standards 4×D Usable Tool Depth to Diameter Rat...

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$840.00
$840.00 - $840.00
$840.00
$449.81
$449.81 - $449.81
$449.81
Save 46% Save %
Save 55% Save %

Precision Twist Drill 209 1-7/8"D 17-3/8"L HSS #5MT Jobber Drill Bit

Precision Twist Drill
$867.00
$867.00 - $867.00
$867.00
$391.54
$391.54 - $391.54
$391.54
In stock

Features: Steam Tempered (Steam Oxide) Surface Treatment High Speed Steel Tool Material ANSI – Tap Standards 4×D Usable Tool Depth to Diameter Rat...

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$867.00
$867.00 - $867.00
$867.00
$391.54
$391.54 - $391.54
$391.54
Save 55% Save %
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Precision Twist Drill S209 1-25/32"D 16-1/4"L HSS #4MT Jobber Drill Bit

Precision Twist Drill
$924.00
$924.00 - $924.00
$924.00
$491.46
$491.46 - $491.46
$491.46
In stock

Features: Steam Tempered (Steam Oxide) Surface Treatment High Speed Steel Tool Material ANSI – Tap Standards 4×D Usable Tool Depth to Diameter Rat...

View full details
$924.00
$924.00 - $924.00
$924.00
$491.46
$491.46 - $491.46
$491.46
Save 47% Save %