Product Details
Place of Origin: CHINA
Brand Name: STARRY
Certification: ISO9000
Model Number: 4.2mm
Payment & Shipping Terms
Minimum Order Quantity: 500pcs hss cobalt jobber drill bit
Price: Negotiable
Packaging Details: Plastic tube;Paper Color box;Plastic box;BOSCH box.
Delivery Time: 30-45days
Payment Terms: T/T, MoneyGram
Supply Ability: 3000000/PCS Per Month
Product Name: |
HSS 5% Cobalt Twist Drill Bit |
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 |
Surface: |
Bright Finished(amber/black Color) |
Usage: |
Drilling Holes In Metal |
Oem: |
Available |
Product Name: |
HSS 5% Cobalt Twist Drill Bit |
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 |
Surface: |
Bright Finished(amber/black Color) |
Usage: |
Drilling Holes In Metal |
Oem: |
Available |
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 |
| Name: | hss-m35 twist drill bit |
| Material: | High Speed Steel HSS M35 (M2 4341 4241 are avaliable) |
| Dia Size: | 12mm |
| Flute length | 101mm |
| Overall length | 151mm |
| Quality Guaranteed: | Perfect quality with 100% Guaranted |
| Process: | Fully Ground(mill/roll forged are avaliable) |
| Shank type: | Parallel shank |
| Standard: | Each drill bit is manufactured strictly according to exacting specifications of DIN338 |
| Special design: | 135 Degree Split Point starts on contact with no walking or skating and no center punch is required |
| Applied material: | Stainless steel, aluminum, copper, steel and other high hardness metal |
| Packing: | 5pcs/Plastic box; 50pcs/carton |
| Weight: | 0.54/Plastic box |
| Carton volume: | 14*9*17cm |
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.
Advantages:
1. Adequate supply,promt delivery. We have five stores and a warehouse in GuangDong with sufficient supply.Buy now,ship immediately.
2. HSS M35 5%Co material .The drill bit has higher hardness and wear resistance which suits drilling stainless steel,cooper,cast steel etc high hardness metal.
3. Sharp blade. The blade processed by full mill is more sharper and has excellent performance in chip removal.
4. Deeper chip removing groove.Double screw thread groove makes the drill bit having excellent performance in chip removal.
5. Thick plastic packaging box to prevent damage to the drill bit during transportation.
| 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 |
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.
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