Step Drill Bit for Metal, Step Drill Bit, 3PCS Titanium Unibit Step Drill Bit Set, High Speed Steel Step Drill Bit HSS Quick Change 1/4" Shank,Total 28 Sizes 3/16" -1/2",1/4"-3/4",1/8"-1/2"
Step Drill Bit for Metal, Step Drill Bit, 3PCS Titanium Unibit Step Drill Bit Set, High Speed Steel Step Drill Bit HSS Quick Change 1/4" Shank,Total 28 Sizes 3/16" -1/2",1/4"-3/4",1/8"-1/2"
- ✅ Two-fluted design provides faster,smoother cutting,provided with small pressure and the sets.
- ✅ The 3-flat shank titanium drill uses a doubleedged design to make cutting smoother and smoother;Increases cutting speed with self-centering and prevents walking.
- ✅ Perfect for home repairs and light jobs such as drilling holes in plastic, aluminum, copper, iron sheet and many other types of sheet metal (excluding steel or any other harder metal).
- ✅ Classic High Speed Steel With Titanium Coating For Proven Capability and Durability. Increases Cutting Speed With Self-Centering And Prevents Walking.
- ✅ Cortool Step Drill Bit is 100% Genuine High Speed Steel (Industrial Grade & Direct Factory), please compare with cheap substitutes on the market. Your customer satisfaction and 30-day warranty of step drill bit can be guaranteed. All our products are tested through high-standard qualifications.
Product Description
High Durability & Universal UseCortool Industry-grade High Speed Steel (60HRC) with titanium coating can reduce friction and run cooler, which ensures prolonged wear-resistance and durability. 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 1/4" Quick Change Hex Shank provides fast and precise cutting while prevents walking and shedding; Laser calibration offers accurate positioning assistance. Cortool step drill bits are built with double flutes design clears particles quickly, decreases friction and heat for a faster, cooler and clean drilling performance. | Industrial Grade Step Drill Bits SetCortool Step Drill Bit is 100% Genuine High Speed Steel (Industrial Grade & Direct Factory), please compare with cheap substitutes on the market. Your satisfaction can be guaranteed. All our products are tested through high-standard qualifications. |
Instructions For Use
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 | 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 |
Technical Specifications
#1: (9-step bit)1/4", 5/16", 3/8", 7/16", 1/2", 9/16", 5/8", 11/16", 3/4" | #2: (6-step bit)3/16", 1/4", 5/16", 3/8", 7/16", 1/2" | #3: (13-step bit)1/8", 5/32", 3/16", 7/32", 1/4",9/32", 5/16", 11/32", 3/8",13/32",7/16",15/32",1/2" |
Material | HSS 4241 | HSS 4241 | HSS 4241 | HSS 4241 | HSS COBALT M35 | HSS 4241 |
---|---|---|---|---|---|---|
Sizes | 50 Sizes | 50 Sizes | 31 Sizes | 10 Sizes | 18 Sizes | 10 Sizes (2" Step Bit) |
Applications | Soft Metal/Steel (<60HRC), Copper, Brass, Aluminium, Plastic, & Soft Wood etc. | Soft Metal/Steel (<60HRC), Copper, Brass, Aluminium, Plastic, & Soft Wood etc. | Quick Cutting: Soft Metal/Steel (<60HRC), Copper, Brass, Aluminium, Plastic, & Soft Wood etc. | Soft Metal/Steel (<60HRC), Copper, Brass, Aluminium, Plastic, & Soft Wood etc. | Stainless steel, hard metals, steel, ferrous and other non-ferrous metals | Soft Metal/Steel (<60HRC), Copper, Brass, Aluminium, Plastic, & Soft Wood etc. |
Coating | Titanium | Black & Gold Titanium | Titanium | Titanium | Industrial Grade TiAlN | Cobalt Added Coating |