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Extra-Long Solid Carbide
Deep Hole Drills for Precision Drilling

Explore deep hole drilling solutions with BigTools’ Extra Solid Carbide Deep Hole Drills. Designed
for 30xD-50xD depths, these drills offer superior stability, chip evacuation, and heat resistance.
Achieve faster speeds, extended tool life, and precision for steel, cast iron, and stainless steel.
Perfect for advanced machining!

Our Top Sellers

Advanced Performance Coolant-Through Carbide Drills ADO-50D D3.000-8.000 - Big-tools Industrial Supply Tools for Metal Cutting
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Advanced Performance Coolant-Through Carbide Drills ADO-50D D3.000-8.000
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Advanced Performance Coolant-Through Carbide Drills ADO-40D D3.000-10.000 - Big-tools Industrial Supply Tools for Metal Cutting
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Advanced Performance Coolant-Through Carbide Drills ADO-40D D3.000-10.000
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Advanced Performance Coolant-Through Carbide Drills ADO-30D D9.400-14.288 - Big-tools Industrial Supply Tools for Metal Cutting
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Advanced Performance Coolant-Through Carbide Drills ADO-30D D9.400-14.288
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Advanced Performance Coolant-Through Carbide Drills ADO-30D D9.400-14.288 - Big-tools Industrial Supply Tools for Metal Cutting
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Advanced Performance Coolant-Through Carbide Drills ADO-30D D3.000-9.128
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Advanced Performance Coolant-Through Carbide Drills ADO-20D D9.400-14.288 - Big-tools Industrial Supply Tools for Metal Cutting
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Advanced Performance Coolant-Through Carbide Drills ADO-20D D9.400-14.288
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Advanced Performance Coolant-Through Carbide Drills ADO-20D D9.400-14.288 - Big-tools Industrial Supply Tools for Metal Cutting
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Advanced Performance Coolant-Through Carbide Drills ADO-20D D3.000-9.128
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Advanced Performance Coolant-Through Carbide Drills ADO-15D D9.922-14.288 - Big-tools Industrial Supply Tools for Metal Cutting
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Advanced Performance Coolant-Through Carbide Drills ADO-15D D9.922-14.288
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Advanced Performance Coolant-Through Carbide Drills ADO-15D D9.922-14.288 - Big-tools Industrial Supply Tools for Metal Cutting
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Advanced Performance Coolant-Through Carbide Drills ADO-15D D3.000-9.800
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Advanced Performance Coolant-Through Carbide Drills ADO-10D D9.525 -14.288 - Big-tools Industrial Supply Tools for Metal Cutting
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Advanced Performance Coolant-Through Carbide Drills ADO-10D D9.525 -14.288
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Advanced Performance Coolant-Through Carbide Drills ADO-10D D9.525 -14.288 - Big-tools Industrial Supply Tools for Metal Cutting
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Advanced Performance Coolant-Through Carbide Drills ADO-10D D6.100-9.500
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Advanced Performance Coolant-Through Carbide Drills ADO-10D D9.525 -14.288 - Big-tools Industrial Supply Tools for Metal Cutting
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Advanced Performance Coolant-Through Carbide Drills ADO-10D D2.000-6.000
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G-D938-A25C 25D Internal Coolant Twist Deep Drills for Steel - Big-tools Industrial Supply Tools for Metal CuttingG-D938-A25C 25D Internal Coolant Twist Deep Drills for Steel - Big-tools Industrial Supply Tools for Metal Cutting
BIGtools
G-D938-A25C 25D Internal Coolant Twist Deep Drills for Steel
D938 Series Deep Hole InternalCoolant Twist Drill● Suitable for efficient drilling of steel, cast iron andstainless steel● New substrate material, perfect balance of toughnessand wear resistance● Using AlTiN-nano coating and unique post-processing ofcoating● Optimize groove profile and drill point design, withsuper self-centering performance, chip...
From $183.10
From $183.10
G-D938-A20C 20D Internal Coolant Twist Deep Drill for Steel 20D - Big-tools Industrial Supply Tools for Metal CuttingG-D938-A20C 20D Internal Coolant Twist Deep Drill for Steel 20D - Big-tools Industrial Supply Tools for Metal Cutting
BIGtools
G-D938-A20C 20D Internal Coolant Twist Deep Drill for Steel 20D
D938 Series Deep Hole InternalCoolant Twist Drill● Suitable for efficient drilling of steel, cast iron andstainless steel● New substrate material, perfect balance of toughnessand wear resistance● Using AlTiN-nano coating and unique post-processing ofcoating● Optimize groove profile and drill point design, withsuper self-centering performance, chip...
From $165.10
From $165.10
G-D938-A15C Internal Cooling Twist Deep Drills for Steel 15D - Big-tools Industrial Supply Tools for Metal CuttingG-D938-A15C Internal Cooling Twist Deep Drills for Steel 15D - Big-tools Industrial Supply Tools for Metal Cutting
BIGtools
G-D938-A15C Internal Cooling Twist Deep Drills for Steel 15D
D938 Series Deep Hole InternalCoolant Twist Drill● Suitable for efficient drilling of steel, cast iron andstainless steel● New substrate material, perfect balance of toughnessand wear resistance● Using AlTiN-nano coating and unique post-processing ofcoating● Optimize groove profile and drill point design, withsuper self-centering performance, chip...
From $115.50
From $115.50
G-D938-A12CSHANK 12D Internal Cooling Twist Deep Drills for Steel 12D - Big-tools Industrial Supply Tools for Metal CuttingG-D938-A12CSHANK 12D Internal Cooling Twist Deep Drills for Steel 12D - Big-tools Industrial Supply Tools for Metal Cutting
BIGtools
G-D938-A12C SHANK 12D Internal Cooling Twist Deep Drills for Steel 12D
D938 Series Deep Hole Internal Coolant Twist Drill● Suitable for efficient drilling of steel, cast iron andstainless steel● New substrate material, perfect balance of toughnessand wear resistance● Using AlTiN-nano coating and unique post-processing ofcoating● Optimize groove profile and drill point design, withsuper self-centering performance, chip...
From $92.60
From $92.60
Solid carbide drills PC drill 15xD Cast iron 1579PC15C-(0500~1400) - Makotools Industrial Supply Tools for Metal CuttingSolid carbide drills PC drill 15xD Cast iron 1579PC15C-(0500~1400) - Makotools Industrial Supply Tools for Metal Cutting
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Solid carbide drills PC drill 15xD Cast iron 1579PC15C-(0500~1400)
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Solid carbide drills SL(K) drill 30xD General machining Add K (SLK) to the code for use on Cast Iron 1588SL30C-(0300~1000) - Makotools Industrial Supply Tools for Metal CuttingSolid carbide drills SL(K) drill 30xD General machining Add K (SLK) to the code for use on Cast Iron 1588SL30C-(0300~1000) - Makotools Industrial Supply Tools for Metal Cutting
ZCC.CT
Solid carbide drills SL(K) drill 30xD General machining Add K (SLK) to the code for use on Cast Iron 1588SL30C-(0300~1000)
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Solid carbide drills SL(K) drill 20xD General machining Add K (SLK) to the code for use on Cast Iron 1588SL20C-(1000~1400) - Makotools Industrial Supply Tools for Metal CuttingSolid carbide drills SL(K) drill 20xD General machining Add K (SLK) to the code for use on Cast Iron 1588SL20C-(1000~1400) - Makotools Industrial Supply Tools for Metal Cutting
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Solid carbide drills SL(K) drill 20xD General machining Add K (SLK) to the code for use on Cast Iron 1588SL20C-(1000~1400)
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Solid carbide drills SL(K) drill 20xD General machining Add K (SLK) to the code for use on Cast Iron 1588SL20C-(0300~0990) - Makotools Industrial Supply Tools for Metal CuttingSolid carbide drills SL(K) drill 20xD General machining Add K (SLK) to the code for use on Cast Iron 1588SL20C-(0300~0990) - Makotools Industrial Supply Tools for Metal Cutting
ZCC.CT
Solid carbide drills SL(K) drill 20xD General machining Add K (SLK) to the code for use on Cast Iron 1588SL20C-(0300~0990)
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Solid carbide drills SL(K) drill 15xD General machining Add K (SLK) to the code for use on Cast Iron 1588SL15C-(0990~1200) - Makotools Industrial Supply Tools for Metal CuttingSolid carbide drills SL(K) drill 15xD General machining Add K (SLK) to the code for use on Cast Iron 1588SL15C-(0990~1200) - Makotools Industrial Supply Tools for Metal Cutting
ZCC.CT
Solid carbide drills SL(K) drill 15xD General machining Add K (SLK) to the code for use on Cast Iron 1588SL15C-(0990~1200)
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