Cobalt Steel Unibit Tree type Double Slot Cone Cutting Shaped Step Drill Bit Kit
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- Supplier: Yueqing Tonghui Tools Co. Ltd.
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Product Overview
Description
HSS Bits Guide
Product Description
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| PRODUCT DETAILS | ||
| Here we are: Home > HSS Drill Bit > HSS Step Drill Bit | ||
| Product Name | Cobalt Steel Unibit Tree type Double Slot Cone Cutting Shaped Step Drill Bit Kit | |
| Brand | TONGHUI | OEM/ODM is available |
| Size | 4-12mm, 4-20mm, 4-32mm (Inch Size is Available) | |
| Material | HSS or HSS Cobalt M35 | |
| Flute | Straight Flute or Spiral Flute | |
| Shank type | Round Shank (Hex or Triangle Shank are available) | |
| Surface finish | TiN (Bright, Black & Amber, Co-coated, Black Oxide, Black & Bright, TiAIN are Available) | |
| Application | Steel, Brass, Copper, Aluminium, Wood, Plastic Material and etc | |
| Features | 1. Step drill bits are perfect for drilling and enlarging multiple-holes in thin sections of sheet metals, pipes, plexiglass, plastics, wood up to a thickness of 5mm. 2. 135° Spilt Point Tip: increases cutting speed with self-centering and the drills do not run off center. 3. A variety of hole diameters can be drilled using only one tool. 4. Two Flute Design: provides longer life and better chip removal. 5. Titanium coating provides up to 2 times the life over high speed steel. 6. Only for rotary use. | |
| Package | 3Pcs in Aluminum Case (Nylon Bag, Wooden Box, Double Blister, Plastic Box, Metal Box are Available) Outer package: Standard sea freight carton Or Customized package. | |
CUSTOMIZED SERVICE? CLICK HERE!
Specification
| SPECIFICATION PARAMETER | ||||
| Model | Size | Shank Diameter | Step Length | Step Overall Length |
| HSS-4241 (Straight/Spiral Flute) | 4-12mm | 6mm | 7mm | 42mm |
| 4-20mm | 8mm | 4.5mm | 52mm | |
| 4-32mm | 10mm | 4mm | 78mm | |
| HSS-6542 (Straight/Spiral Flute) | 4-12mm | 6mm | 4.5mm | 49mm |
| 4-20mm | 8mm | 4.5mm | 53mm | |
| 4-32mm | 10mm | 4mm | 79mm | |
| Cobalt M35 (Straight/Spiral Flute) | 4-12mm | 6mm | 4.5mm | 44mm |
| 4-20mm | 8mm | 4.5mm | 51mm | |
| 4-32mm | 10mm | 4mm | 78mm | |
| We provide customized service of diameter, overall length, shank type, color and package. Please contact us! | ||||
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Cobalt Steel Unibit Tree type Double Slot Cone Cutting Shaped Step Drill Bit Kit
A step drill bit is a drill bit that has the tip ground down to a different diameter. The transition between this ground diameter and the original diameter is either straight, to form a counterbore, or angled, to form a countersink. The advantage to this style is that both diameters have the same flute characteristics, which keeps the bit from clogging when drilling in softer materials, such as aluminum; in contrast, a drill bit with a slip-on collar does not have the same benefit. Most of these bits are custom-made for each application, which makes them more expensive.
(from wikipedia)
Our Services
Prompt Production & Delivery
Available in Various Requires
Customized Specifications Accepted
OEM & ODM Service and Buyer Label Offered
Quick Response to Your Inquiry on Line, Email, or Telephone
Company Information
Packaging & Shipping
| Packaging Detail | Inner package: Environmental friendly palstic box Outer package: Standard sea freight carton Or Customized package. |
| Production Time | 2~15 working days based on quantity after confirmed sample. |
FAQ
1. Q: Is OEM available?
A: Yes, OEM and customization are available. Also, we can provide label printing service.
2. Q: Are samples available?
A: Yes, but sample fee or freight fee will be required, the sample fee will be returned to you after you making official order.
3. Q: Is there cheap shipping cost to import to our country?
A: For small order, Express will be the first choice, And for bulk order, sea ship way is best but take longer time. For urgent orders, we suggest via air to airport or by Express.
4. Q: What is your payment terms?
A: T/T, L/C, WESTERN UNION and ONLINE TRADE ASSURANCE ORDER.
5. Q: What's your delivery time?
A: 2-15 working days based on quantity after confirmed sample
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