AMBER & BLACK TITANIUM COATED STEP DRILL BIT 1/4"–1-3/8" – 10 STEPS
Create 10 clean, precise hole sizes from 1/4" through 1-3/8" with a premium M2 high-speed steel step drill engineered for demanding professional and heavy-maintenance work. The Amber & Black design combines premium construction with a dual-color step system that makes each cutting diameter easier to see while drilling, helping the operator track progress and stop accurately at the desired size. With a maximum diameter of 1-3/8", this larger-capacity bit is especially useful for fabrication, enclosure work, maintenance, and applications requiring progressively larger finished holes.
The Amber & Black titanium coating is designed to provide a cooler cut for extended bit life, while the spiral double-flute geometry quickly evacuates chips and helps manage heat during the cut. A self-centering split point minimizes walking for faster, more controlled starts, and the stepped profile drills and reams in one smooth progression without repeatedly changing bits. The result is a premium large-diameter step drill built around visibility, control, chip removal, and durability for drilling and enlarging holes in thin materials.
AMBER & BLACK TITANIUM COATED STEP DRILL BIT 1/4"–1-3/8" – 10 STEPS
Create 10 clean, precise hole sizes from 1/4" through 1-3/8" with a premium M2 high-speed steel step drill engineered for demanding professional and heavy-maintenance work. The Amber & Black design combines premium construction with a dual-color step system that makes each cutting diameter easier to see while drilling, helping the operator track progress and stop accurately at the desired size. With a maximum diameter of 1-3/8", this larger-capacity bit is especially useful for fabrication, enclosure work, maintenance, and applications requiring progressively larger finished holes.
The Amber & Black titanium coating is designed to provide a cooler cut for extended bit life, while the spiral double-flute geometry quickly evacuates chips and helps manage heat during the cut. A self-centering split point minimizes walking for faster, more controlled starts, and the stepped profile drills and reams in one smooth progression without repeatedly changing bits. The result is a premium large-diameter step drill built around visibility, control, chip removal, and durability for drilling and enlarging holes in thin materials.
Keep the bit approximately 90° to the work surface for a controlled cut.
Progress through the steps gradually rather than forcing the bit.
Use steady pressure and allow the cutting edges to do the work.
Select drilling speed according to the material and cutting diameter.
Larger cutting diameters generally require slower, more controlled operation.
Use an appropriate cutting lubricant when drilling metals.
Stop the tool before clearing chips; use a brush, not your hands.
Do not use hammer action when drilling with a hammer drill/driver.
Make sure the 3-flat shank is fully seated and securely tightened in the drill chuck before operation.
Frequently Asked Questions
It produces 10 hole sizes: 1/4", 3/8", 1/2", 5/8", 3/4", 7/8", 1", 1-1/8", 1-1/4", and 1-3/8".
The premium design combines M2 high-speed steel with an Amber & Black dual-color coating system that improves step visibility during drilling. The coating is also designed to provide a cooler cut for extended bit life.
The contrast between the Amber & Black steps makes individual cutting diameters easier to identify as the bit progresses through the workpiece, helping the operator stop at the desired size.
It is manufactured from M2 high-speed steel with an Amber & Black titanium coating.
The coating is designed to provide a cooler cut while adding surface wear resistance, helping support longer service life.
The spiral double flutes quickly move chips away from the cutting area, helping manage heat and maintain a controlled cut.
Yes. Its progressive stepped profile is especially useful for enlarging existing openings gradually up to a finished diameter of 1-3/8".
Yes. The transition between steps can be used carefully for controlled chamfering or light deburring without advancing far enough to unintentionally enlarge the hole.
Use a corded drill, cordless drill/driver or drill press with an adjustable chuck that securely grips the 3-flat shank. Check the chuck opening and the tool’s drilling capacity before use. This shank does not fit directly into a 1/4" quick-change impact driver.
Up to 1/4" in suitable metal, provided the selected step is long enough to pass through the workpiece without engaging the next diameter. Choose the drilling speed and lubricant for your material and hole size.
Select drilling speed according to both the workpiece material and the cutting diameter. Because this bit reaches 1-3/8", slower and more controlled operation becomes increasingly important as you progress through the larger steps.
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their order within 3-5 days from date of purchase. Faster shipping options available for additional charge.
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delivered within the lower 48 states.
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