| Customization: | Available |
|---|---|
| Customized: | Customized |
| Standard: | Fat |
|
Still deciding? Get samples of $ !
Order Sample
|
| Shipping Cost: | Contact the supplier about freight and estimated delivery time. |
|---|
| Payment Methods: |
|
|---|---|
| Support payments in USD |
| Secure payments: | Every payment you make on Made-in-China.com is protected by the platform. |
|---|
| Refund policy: | Claim a refund if your order doesn't ship, is missing, or arrives with product issues. |
|---|
Suppliers with verified business licenses
Audited Supplier Audited by an independent third-party inspection agency
Step Cone Drill Bit
| Material | HSS4241,HSS4341,M2,M35 |
| Style | Straight Flute,Spiral Flute |
| Shank | 3-Way Clamping (Hex Shank Size 1/4" Inch (6.35 mm),Round Shank are available) |
| Surface | Amber Color (Black Oxide,Bright,Amber Color, Titanium Coated are available) |
| Package | in Plastic Box, Double Blister Card, Metal Box,Storage Bag of 3 |
| Measurement System | MM(Metric is available) |
| Applications | Suitable for using to cut holes in a variety of materials including steel, brass, wood, plastic, bronze, aluminum etc |
| Description | The split point tip increases cutting speed with self-centering and prevents walking 2 flute spiral design provides longer life and better chip removal. |
How to choose HSS step drill bit?
Choosing the right HSS (High-Speed Steel) step drill depends on several factors, including material, hole size range, coating, and application requirements. Here's a step-by-step guide to help you select the best one:
Soft Metals (Aluminum, Copper, Brass):
Choose uncoated or TiN-coated HSS step drills for better chip evacuation.
Hard Metals (Steel, Stainless Steel):
Opt for TiAlN or Cobalt-enhanced HSS for heat resistance and durability.
Plastics & Wood:
Standard HSS works well, but ensure sharp edges to avoid melting or splintering.
Number of Steps:
Common step drills have 5-13 steps, with increments of 1-2mm per step.
Choose based on the hole size range needed (e.g., 4-20mm).
Final Hole Diameter:
Ensure the largest step matches your required max hole size.
Round Shank: Fits standard drill chucks (common for hand drills).
Hex Shank (¼" or ½"): Better grip in impact drivers or quick-change chucks.
Uncoated HSS: Economical, good for soft metals & plastics.
TiN (Titanium Nitride): Gold-colored, increases hardness & heat resistance.
TiAlN (Titanium Aluminum Nitride): Darker coating, best for hard metals.
Black Oxide: Reduces friction, good for general-purpose use.
Spiral Flutes: Better for deep holes in thick materials.
Straight Flutes: Common in step drills, good for thin sheets.
Soft Metals: Higher RPM (1000-3000 RPM).
Hard Metals: Lower RPM (500-1000 RPM) + use cutting oil (for steel/stainless).
Reputable Brands:
Famous brand and ERGASTER offer reliable options.
Avoid Cheap No-Name Brands: Poor heat treatment leads to rapid dulling.
Thin Sheet Metal: Use a short-length step drill (better control).
Electrical & Plumbing: Choose insulated (VDE-rated) if working near live wires.
Automotive Work: Cobalt HSS step drills handle hardened screws & sheet metal.
| FAQ |
| Q: What can we provide ? |
| A: We are a professional manufacturer of drill bit and have our own packing centre. We have worked together with many good manufactuers of different tools as an exclusive tool club. We can provide our factory direct price for a vast range of products, including power tool accessories, hand tools, combination kits, etc. |
| Q:What is the shipping port? |
| A: We ship the goods via Shanghai/Ningbo port. |
| Q:How about the sample? |
| A: The samples will be sent to you via express .You can testing quality. |
| Q:How do you control the quality? |
| A: We will make samples before mass production, and mass production will be arranged after samples approved. Doing 100% inspection during production, then do random inspection before packing, taking pictures after packing. |
| Q:Is OEM available? |
| A: Customization(OEM)for our main products is accepted -- Our factory have theQualified Designer team. They can design according to your drawing or pictures,and produce the sample for your checking before order. Please kindly contact our sales staff for quotation. |
| Shipping way |
| 1. Small quantity: by international air express (TNT/FedEx/DHL/UPS for samples or under 45KG wegight goods .) |
| 2. Large quantity: by ocean cargo, arriving time depends on customers destination |
| 3. Customers specifying freight forwarders or not. |
| Our service |
| 1. 24hours online technical support (telephone and email) |
| 2. Engineers are available |
| Please contact with us when you gonna order,we will answer back ASAP. |
){kind=link}