Home > Products > step drill bit > Professional Grade Drill Bit, HSS Straight Flute and Spiral Flute Step Drill Bit,3PCS
Professional Grade Drill Bit, HSS Straight Flute and Spiral Flute Step Drill Bit,3PCS
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Product Details
| Place of Origin | Shanghai, China | Brand Name | Tool-King | |
| Model Number | various | Type | Other, step drill bit | |
| Material | High Speed Steel | Use | Metal Drilling |
Product Description
Professional grade drill bit, HSS straight flute and spiral flute step drill bit,3PCS
Step drill bit are drill bits that are shaped like a cone and are comprised of multiple sizes, or steps, in a single package. These can be anywhere from two to 13 different bit sizes in increments of 1/32 inch to 3/4 inch, or 4 to 12 millimeters. The user simply starts the drill bit into the part to be drilled and pushes the bit in until the desired size hole has been drilled. The benefit is a step drill bit is that most are rated to last up to six times longer than a conventional drill bit.
Step drill bit are are not intended for use on wood, however. One particular use for these drills is with sheet-metal work. When the need for multiple sized holes would require the user to change drill bits over and over, step drills save time and expense in many cases over conventional drill bits. Use a drill bit with step increments slightly larger than the materials thickness that is to be drilled. By design, step drills are limited to use on thin material.
Beyond being a versatile drill bit, step drill bit can also serve as a countersink, which allows for screws and fasteners to be drilled below the surface. Counterboring is another use for these bits.
| Specification | Steps | OAL | Shank Size | Material | |
| 4-12 | 5 | 65mm | 6mm | HSS 4241/4341/M2/M35 | |
| 4-12 | 9 | 65mm | 6mm | HSS 4241/4341/M2/M35 | |
| 4-20 | 9 | 75mm | 8mm | HSS 4241/4341/M2/M35 | |
| 4-30 | 14 | 100mm | 10mm | HSS 4241/4341/M2/M35 | |
| 6-38 | 12 | 100mm | 10mm | HSS 4241/4341/M2/M35 | |
| 6-26.75 | 8 | 75mm | 10mm | HSS 4241/4341/M2/M35 | |
| 4-39 | 13 | 107mm | 10mm | HSS 4241/4341/M2/M35 | |
| 6-32 | 8 | 75mm | 10mm | HSS 4241/4341/M2/M35 | |
| 6-30 | 9 | 80mm | 10mm | HSS 4241/4341/M2/M35 |
Question 1: Are you professional manufacturer or foreign trade company of hss twist drill bit line?
Answer: Shanghai Tool-King Trade Co., Ltd. is a professional manufacture and trader for all kinds of cutting tools in China. Since we have advanced management system, strong technical power and modern inspection instruments, our products have been exported to many countries and regions in Europe, America, Australia and Southeast Asia with a high reputation.
Question 2: What are your main products?
Answer: Our main products are all kinds of HSS twist drill bits and drill sets, SDS-plus drill bits,wood working drill bits, Masonry drill bits, HSS hole saws, Diamond Saw Blades, TCT Circular Saw Blades.
Question 3: What material standard you using now regarding twist drill bit?
Answer: We are using HSS standard of: HSS M35Co%, HSSM2(6542),HSS 9341, HSS4341, HSS4241.
Question 4: Can you supply sample test and your samples are free?
Answer: Yes, we can supply samples customer need. The samples are usually free, but according to our company rule, customer need to pay the freight, and we promise we will definitely return the postage to you when we cooperation.
Question 5: What are your contact information?
Answer: TEL: 86-15800892551
Skype: kevinzhu2007 .
Question 6: Why we are asking a lot of information for producing a sample ?
According to diffierent working conditions, the cutting result may vary. In oder to let us design a precise sample that exactly fits for you, we need to collect as detail as possible information. A suitable sample could save much time for you on the sample testing.
Question 7: Do we charge for the sample ?
Need to discussion. The samples fee will be decide by the production process. if it is simple, will be free charge. If complex, will be not free, but we will return to you once bulk orders. Thank you for your understanding.
Question 8: What is our terms of payment ?
We have 4 ways of payment, T/T, Western Union, B/L, Paypal and Secure Payment.
Contact Us
- Shanghai Talent Tools Co., Ltd.
- Contact nameKevin ZHU Chat Now
- Phone86-21-50840258
- AddressRoom 2506, Building 1, Lane 1155, Dongxiu Road
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