[1 & 4 to 3 & 4 Step Bit]
[1 & 8 to 1 & 2 Step Bit]
[2-Piece Set]
[1 & 4 to 1-3 & 8 Step Bit]
[3-Piece Set]
[4-Piece Set (Spiral Flutes)]
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High Durability & Universal UseCortool Industry-grade High Speed Steel (60HRC) stepp drill bits feature a titanium coating so they run cool and are made out of high speed steel for a long service life. The drill bits automatically deburr holes as you drill and the two-flute design provides faster, smoother cutting. Whether drilling in plastic, metal or wood, these drill bits cut great every time. Cortool step drill bits are compatible with majority brands of electric drills or bench drills on the market. Easy to store in toolbox or pocket. |
Precision DrillingCortool step drill bit has 118° Split Point which provides fast cutting with 3-Flat Shank provides fast and precise cutting while prevents walking and shedding; Laser calibration offers accurate positioning assistance. |
Dual-Flute DesignCortool step drill bits are built with double flutes design clears particles quickly, decreases friction and heat for a faster, cooler and clean drilling performance. |
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Keep VerticalKeep the drill bits vertical to the object when drilling and be sure to make both bit and workpiece stable. Tilted bit is prone to break. |
Pressure and SpeedWhen using bits with a power drill, it is recommended to use them with low speed and drilling pressure. |
Use Lubrication Fluid/WaterFriction will accumulate heat between bits and the material being drilled and pay attention to the heat, add water or coolant if necessary. USE water to extend the use life of step bits. |
Workpiece SelectionThick material are recommended to be drilled with drill press, which is more stable and adjustable and for high-efficient drilling, thickness of material shall be less than that of each step. |
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#1: (12-Step Bit)3/16", 1/4", 5/16", 3/8", 7/16", 1 /2", 9/16", 5/8", 11/16", 3/4", 13/16", 7/8" |
#2: (11-Step Bit)1/4", 25/64", 35/64", 11/16", 13/16", 7/8", 1", 1-1/8", 1-7/32", 1-1/4", 1-3/8" |
Cool-running titanium coating lasts longer than uncoated bits. High speed steel for longer life. Automatically deburrs holes while drilling Two-flute design gives you faster, smoother cutting. Flat sided round shank fits most drills |
Material | Indutrial Grade HSS 4241 With Titanium Coated |
Split Point | 118° X-Type With Sharp Self-Centering |
Flute Type | Dual-Flute |
Shank Type | 3/8" 3-Flat Hex Shank |
Package Included | 2 x Drill Bits WithBlister Card Package |