Jiangsu Xingrui Tools CO.,LTD
| Shank | paraller shank |
| Drill Bit Hardness | 60-66HRC |
| Process | Fully Ground |
| Name | DIN338 hss fully ground drill bit |
| Degree Point | 135° |
| Material | HSS-M2;M35 Cobalt drill bit |
| OEM | Accept |
| Surface | Bright finished(amber/black color) |
| Brand Name | STARRY |
| Model Number | 4.2mm |
| Certification | ISO9000 |
| Place of Origin | CHINA |
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Product Specification
| Shank | paraller shank | Drill Bit Hardness | 60-66HRC |
| Process | Fully Ground | Name | DIN338 hss fully ground drill bit |
| Degree Point | 135° | Material | HSS-M2;M35 Cobalt drill bit |
| OEM | Accept | Surface | Bright finished(amber/black color) |
| Brand Name | STARRY | Model Number | 4.2mm |
| Certification | ISO9000 | Place of Origin | CHINA |
| High Light | concrete drill bit ，titanium drill bits | ||
HSS Drill bits are cutting tools used to create cylindrical holes, almost always of circular cross-section. Bits are held in a tool called a drill, which rotates them and provides torque and axial force to create the hole. Specialized bits are also available for non-cylindrical-shaped holes.
A:Material and Hardness:
| DESCRIPTION OF HSS | C | W | Mo | Cr | V | Co | Si | Mn | P | S |
| % | % | % | % | % | % | % | % | % | % | |
| W2MoCr4V(F4341) | 0.95-1.05 | 1.7-2.4 | 0.8-1.2 | 3.8-4.4 | 0.8-1.2 | 1.0-1.4 | 0.2-0.4 | <=0.03 | <=0.03 | |
| W4Mo3Cr4V(4341) | 0.88-0.98 | 3.5-4.5 | 2.5-3.5 | 3.8-4.4 | 1.2-1.8 | 0.5-1.2 | 0.2-0.4 | <=0.03 | <=0.03 | |
| W9Mo3Cr4V(9341) | 0.77-0.87 | 8.5-9.5 | 2.7-3.3 | 3.8-4.4 | 1.3-1.7 | - | 0.2-0.4 | 0.2-0.4 | <=0.03 | <=0.03 |
| W6Mo5Cr4V2(M2) | 0.8-0.9 | 5.5-6.75 | 4.5-5.5 | 3.8-4.4 | 1.75-2.2 | - | 0.2-0.4 | 0.2-0.4 | <=0.03 | <=0.03 |
| W6Mo5Cr4V2Co5(M35) | 0.9-0.95 | 5.5-6.5 | 4.5-5.5 | 3.8-4.4 | 1.75-2.2 | 4.5-5.5 | 0.2-0.4 | 0.2-0.4 | <=0.03 | <=0.03 |
| W2Mo9Cr4V2Co8(M42) | 1.05-1.15 | 1.15-1.85 | 9.0-10.0 | 3.5-4.25 | 0.95-1.25 | 7.75-8.75 | 0.15-0.65 | 0.15-0.4 | <=0.02 | <=0.025 |
B:Application:
Drilling holes on aluminium,plastic,wood,copper,iron,stainless steel.
DIY;Trade;Automotive;Electrician;Plumber;Carpenter;General Contractor;Woodworker;Metalworker;Machine Shop;MRO.
Cobalt DRILL BIT:
The 5% cobalt formula improves abrasive & heat resistance, for increased strength at higher drilling
temperatures.
135° Split Point Enables accurate positioning and less drilling pressure.
| D(mm) | L2(mm) | L1(mm) | D(mm) | L2(mm) | L1(mm) | D(mm) | L2 (mm) | L1(mm) | D(mm) | L2 (mm) | L1(mm) |
| 0.2 | 2.5 | 19 | 1.95 | 24 | 49 | 6 | 57 | 93 | 11.2 | 94 | 142 |
| 0.22 | 2.5 | 19 | 2 | 24 | 49 | 6.1 | 63 | 101 | 11.3 | 94 | 142 |
| 0.25 | 3 | 19 | 2.05 | 24 | 49 | 6.2 | 63 | 101 | 11.4 | 94 | 142 |
| 0.28 | 3 | 19 | 2.1 | 24 | 49 | 6.3 | 63 | 101 | 11.5 | 94 | 142 |
| 0.3 | 3 | 19 | 2.15 | 27 | 53 | 6.4 | 63 | 101 | 11.6 | 94 | 142 |
| 0.32 | 4 | 19 | 2.2 | 27 | 53 | 6.5 | 63 | 101 | 11.7 | 94 | 142 |
| 0.35 | 4 | 19 | 2.25 | 27 | 53 | 6.6 | 63 | 101 | 11.8 | 94 | 142 |
| 0.38 | 4 | 19 | 2.3 | 27 | 53 | 6.7 | 63 | 101 | 11.9 | 101 | 151 |
| 0.4 | 5 | 20 | 2.35 | 27 | 53 | 6.8 | 69 | 109 | 12 | 101 | 151 |
| 0.42 | 5 | 20 | 2.4 | 30 | 57 | 6.9 | 69 | 109 | 12.1 | 101 | 151 |
| 0.45 | 5 | 20 | 2.45 | 30 | 57 | 7 | 69 | 109 | 12.2 | 101 | 151 |
| 0.48 | 5 | 20 | 2.5 | 30 | 57 | 7.1 | 69 | 109 | 12.3 | 101 | 151 |
| 0.5 | 6 | 22 | 2.55 | 30 | 57 | 7.2 | 69 | 109 | 12.4 | 101 | 151 |
| 0.52 | 6 | 22 | 2.6 | 30 | 57 | 7.3 | 69 | 109 | 12.5 | 101 | 151 |
| 0.55 | 7 | 24 | 2.65 | 30 | 57 | 7.4 | 69 | 109 | 12.6 | 101 | 151 |
| 0.58 | 7 | 24 | 2.7 | 33 | 61 | 7.5 | 69 | 109 | 12.7 | 101 | 151 |
| 0.6 | 7 | 24 | 2.75 | 33 | 61 | 7.6 | 75 | 117 | 12.85 | 101 | 151 |
| 0.62 | 8 | 26 | 2.8 | 33 | 61 | 7.7 | 75 | 117 | 12.9 | 101 | 151 |
| 0.65 | 8 | 26 | 2.85 | 33 | 61 | 7.8 | 75 | 117 | 13 | 101 | 151 |
| 0.68 | 9 | 28 | 2.9 | 33 | 61 | 7.9 | 75 | 117 | 13.1 | 101 | 151 |
| 0.7 | 9 | 28 | 2.95 | 33 | 61 | 8 | 75 | 117 | 13.2 | 101 | 151 |
| 0.72 | 9 | 28 | 3 | 33 | 61 | 8.1 | 75 | 117 | 13.3 | 108 | 160 |
| 0.75 | 9 | 28 | 3.1 | 36 | 65 | 8.2 | 75 | 117 | 13.4 | 108 | 160 |
| 0.78 | 10 | 30 | 3.2 | 36 | 65 | 8.3 | 75 | 117 | 13.5 | 108 | 160 |
| 0.8 | 10 | 30 | 3.3 | 36 | 65 | 8.4 | 75 | 117 | 13.6 | 108 | 160 |
| 0.82 | 10 | 30 | 3.4 | 39 | 70 | 8.5 | 75 | 117 | 13.7 | 108 | 160 |
| 0.85 | 10 | 30 | 3.5 | 39 | 70 | 8.6 | 81 | 125 | 13.8 | 108 | 160 |
| 0.88 | 11 | 32 | 3.6 | 39 | 70 | 8.7 | 81 | 125 | 13.9 | 108 | 160 |
| 0.9 | 11 | 32 | 3.7 | 39 | 70 | 880 | 81 | 125 | 14 | 108 | 160 |
| 0.92 | 11 | 32 | 3.8 | 43 | 75 | 8.9 | 81 | 125 | 14.25 | 114 | 169 |
| 0.95 | 11 | 32 | 3.9 | 43 | 75 | 9 | 81 | 125 | 14.5 | 114 | 169 |
| 0.98 | 12 | 34 | 4 | 43 | 75 | 9.1 | 81 | 125 | 14.75 | 114 | 169 |
| 1 | 12 | 34 | 4.1 | 43 | 75 | 9.2 | 81 | 125 | 15 | 114 | 169 |
| 1.05 | 12 | 34 | 4.2 | 43 | 75 | 9.3 | 81 | 125 | 15.25 | 120 | 178 |
| 1.1 | 14 | 36 | 4.3 | 47 | 80 | 9.4 | 81 | 125 | 15.5 | 120 | 178 |
| 1.15 | 14 | 36 | 4.4 | 47 | 80 | 9.5 | 81 | 125 | 15.75 | 120 | 178 |
| 1.2 | 16 | 38 | 4.5 | 47 | 80 | 9.6 | 87 | 133 | 16 | 120 | 178 |
| 1.25 | 16 | 38 | 4.6 | 47 | 80 | 9.7 | 87 | 133 | 16.25 | 125 | 184 |
| 1.3 | 16 | 38 | 4.7 | 47 | 80 | 9.8 | 87 | 133 | 16.5 | 125 | 184 |
| 1.35 | 18 | 40 | 4.8 | 52 | 86 | 9.9 | 87 | 133 | 16.75 | 125 | 184 |
| 1.4 | 18 | 40 | 4.9 | 52 | 86 | 10 | 87 | 133 | 17 | 125 | 184 |
| 1.45 | 18 | 40 | 5 | 52 | 86 | 10.2 | 87 | 133 | 17.25 | 130 | 191 |
| 1.5 | 18 | 40 | 5.1 | 52 | 86 | 10.3 | 87 | 133 | 17.5 | 130 | 191 |
| 1.55 | 20 | 43 | 5.2 | 52 | 86 | 10.4 | 87 | 133 | 17.75 | 130 | 191 |
| 1.6 | 20 | 43 | 5.3 | 52 | 86 | 10.5 | 87 | 133 | 18 | 130 | 191 |
| 1.65 | 20 | 43 | 5.4 | 57 | 93 | 10.6 | 87 | 133 | 18.5 | 135 | 198 |
| 1.7 | 20 | 43 | 5.5 | 57 | 93 | 10.7 | 94 | 142 | 18.75 | 135 | 198 |
| 1.75 | 22 | 46 | 5.6 | 57 | 93 | 10.8 | 94 | 142 | 19 | 135 | 198 |
| 1.8 | 22 | 46 | 5.7 | 57 | 93 | 10.9 | 94 | 142 | 19.25 | 140 | 205 |
| 1.85 | 22 | 46 | 5.8 | 57 | 93 | 11 | 94 | 142 | 19.5 | 140 | 205 |
| 1.9 | 22 | 46 | 5.9 | 57 | 93 | 11.1 | 94 | 142 | 19.75 | 140 | 205 |
| 20 | 140 | 205 |
STARRY Drill bit can drilling holes on aluminium,plastic,wood,copper,iron,stainless steel.
1. 5/10 pieces packind in PVC bag, then in white paper box, then in carton. ( default bullk packing)
2.Plastic tube,Blister Packing,PVC bags with card,Metal Box and so on.
XRTOOLS are professional in HSS cutting tools about 15 years old,we accumulated abundant experience of manufacture, and have more ability of investigation and exploitation,as well as leading test equipment,So now some of world famous tool traders punchase from us.hope we can working together in near future.
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.
Company Details
Business Type:
Manufacturer,Trading Company
Year Established:
2008
Total Annual:
5,000,000-6,000,000
Employee Number:
100~120
Ecer Certification：
Active Member
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... 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...
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