
1. CBN ground flute
CBN ground spiral flutes enable very sharp and burr-free cutting
edges compared to the ordinary milled flutes. Especially the chip
flow isoptimized, so even long, non-breaking chips will be removed
easily. The optimized chip flow protects the cutting edges and
reduces built-upedges and cold weld marks. Due to these special
features, cutting performance and tool life are extended
significantly.
2. Radially adjusted relief produced by CBN grinding
Each step has a radially adjusted relief produced by CBN grinding
that relates directly to the diameter of the step.This means the
cutting edge is always the highest point of the diameter.
3. Flute
Each step is axially CBN relief ground. This means the cutting edge
is always the highest point of the axial cutting axis.
4. CBN ground relief angle
The cutting edge of each step has relief angle. This means the
cutting edge is also the highest point in advance direction.
5. CBN ground bit with split point DIN 1412 C
The CBN ground bit ensures centering and spot-drilling even in
thin-walled material.
Procuct Name | 3Pcs 3 Flats Shank Spiral Flute HSS Step Drill Bit Set |
Sizes | 4-12mm, 4-20mm, 4-32mm (step drill bit) |
Material | HSS (Cobalt M35 is Available) |
Flute Type | Spiral Flute |
Flute Number | Two Flutes (Single Flute, Three Flutes are Available) |
Shank | Three Flats Shank (Quick Change Hex Shank, Round Shank, Double R Shank are Available) |
Surface Finish | Black Oxide |
Package | 3Pcs in Aluminum Case |
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. The dimension of drilled hole is exact. 5. Two Flute Design: provides longer life and better chip removal. 6. Titanium nitride coating provides up to 6 times the life over high speed steel. 7. Only for rotary use. |
1. Experience : We are a supplier of many brands in Germany. So we have the
confidence to provide you with the best service.
2. Quality Control : Quality Control System from STARRY Germany ensure our STARRY
Factory's products and service QUALITY which have strict processing
quality Control for every step.
3. Service : We offer OEM&ODM service.and we accept trial order. If you
find any problem. we'll find the suitable solution.
4. Product : We have confidence in the quality of our products.and the product
prices are also competitive.
Q1: Do you have your own brand?
A1: Yes, the brand name is STARRY Tools, we can provide OEM
services to our customers as well.
Q2: What's your target market?
A2: We mainly focus on Europe and South America right now.
Q3: What is the biggest advantage compared to the rivals?
A3: We are one of the strongest HSS Cutting tools supplier in
China.
Q4: What is your MOQ?
A4: 500 pcs
Q5: What about the payment and delivery time?
A5: Delivery time: All items are ready in stock and can be sent
within one week.
Payment: T/T.
100% protection for product quality, on-time shipment and payment
Q6: Can I get some samples?
A6: Yes, we are honored to offer you samples for quality check at
your freight cost.
Q7: How does your factory do regarding quality control?
A7: Quality is priority. We always attach great importance to
quality control from the very beginning to the end of the
production. Every product will be carefully tested before it's
packed for shipment.
Jiangsu Xingrui Tools CO.,LTD
JIANG SU XING RUI TOOLS CO., LTD. is one of the professional manufacturers of different kinds cutting tools in china, specialized in all kinds of HSS twist drill bits, SDS drill bits ,wood working drill bits , HSS machine Taps,hand taps,spiral flute taps,End mill,Hole Saw and some other power tool accessories. We're located in hou xiang town,Danyang city,Jiang Su province,with very convenient transportation to HuNing Expressway, and the north of the Yangtze River.
With rich experience, advanced technology and professional skills,
our products can always maintain the first class quality in China .In recent years, our
products have being widely sold to both domestic and foreign
markets, and well received by the customers worldwide, such as in
America, Europe, Middle East, Indonesia and so on .
Competitive prices are always offered to our satisfied customers .No matter the order is big or small, we always do our best service for our customers at any time .We will grow up stronger with our customers shoulder by shoulder and would like to keep our mutual benefit relationship supported by both your efforts and ours. Meanwhile, We highly appreciate our customers for their support, we also thanks a lot for the people who gave their concern to us and helped us in our development.
Hope to create a brilliant future with you!