Drill for machining stainless steel materials
Processing case
Workpiece material hardness: HRC30-2
hole depth: 25mm
aperture size:D9.2
recommended parameter:
Vc=45m/min fr=0.22mm/r
inner-cooling
cutting life: 10000hole
Product advantages
Stainless steel is a relatively difficult material to process, need to choose a good material and coating, control the front corner of the tool and blade belt design, in order to better drill this material
The design of drill point is very important, can design arc after Angle drill point and cross drill point, according to the needs of different customers, the structure of the drill can be different
The Angle of spiral groove is also very important, can affect the iron filings! According to the needs of customers, it can also be made into double-edged belt structure, good stability
Stainless steel drill bit: Suitable for efficient drilling of various stainless steel materials
| Bit diameter range d1(m7) | Drilling depth ratio (1/d) | Cooling mode | Shank form | Ordering model | Basic dimensions(mm) | remarks | ||||
| Shank diameter | Total length | Slot length | Recommended drilling depth | coating | ||||||
| d2(h6) | l1 | 12 | 13 | |||||||
| 2 ~2.5 | 3 | External cooling | Straight shank | d1*l3*d2*l1*3D | 3 | 54 | 13 | 9 | ||
| 5 | External cooling | Straight shank | d1*l3*d2*l1*5D | 3 | 58 | 18 | 14 | |||
| 2.55~2.95 | 5 | External cooling | Straight shank | d1*l3*d2*l1*5D | 4 | 58 | 18 | 14 | ||
| 3 | External cooling | Straight shank | d1*l3*d2*l1*3D | 4 | 54 | 20 | 14 | |||
| 8 | External cooling | Straight shank | d1*l3*d2*l1*8D | 4 | 66 | 28 | 23 | |||
| 3.6~4 | 3 | External cooling | Straight shank | d1*l3*d2*l1*3D | 4 | 54 | 20 | 14 | ||
| 5 | External cooling | Straight shank | d1*l3*d2*l1*5D | 4 | 66 | 28 | 23 | |||
| 8 | Internal cooling | Straight shank | d1*l3*d2*l1*8D | 4 | 72 | 34 | 29 | |||
| 4~4.9 | 3 | External cooling | Straight shank | d1*l3*d2*l1*3D | 5 | 66 | 24 | 17 | ||
| 5 | External cooling | Straight shank | d1*l3*d2*l1*5D | 5 | 74 | 34 | 26 | |||
| 8 | Internal cooling | Straight shank | d1*l3*d2*l1*8D-C | 6 | 95 | 57 | 46 | |||
| 5~6.0 | 3 | External cooling | Straight shank | d1*l3*d2*l1*3D | 6 | 66 | 28 | 20 | ||
| 5 | External cooling | Straight shank | d1*l3*d2*l1*5D | 6 | 82 | 42 | 32 | |||
| 8 | Internal cooling | Straight shank | d1*l3*d2*l1*8D-C | 6 | 95 | 57 | 47 | |||
| 6.1~7 | 3 | External cooling | Straight shank | d1*l3*d2*l1*3D | 7 | 79 | 34 | 24 | ||
| 5 | External cooling | Straight shank | d1*l3*d2*l1*5D | 7 | 91 | 53 | 41 | |||
| 8 | Internal cooling | Straight shank | d1*l3*d2*l1*8D-C | 8 | 110 | 74 | 62 | |||
| 7.1~8 | 3 | External cooling | Straight shank | d1*l3*d2*l1*3D | 8 | 79 | 40 | 28 | ||
| 5 | External cooling | Straight shank | d1*l3*d2*l1*5D | 8 | 91 | 52 | 42 | |||
| 8 | Internal cooling | Straight shank | d1*l3*d2*l1*8D-C | 8 | 110 | 73 | 65 | |||
| 8.1~ 9 | 3 | External cooling | Straight shank | d1*l3*d2*l1*3D | 9 | 89 | 45 | 32 | ||
| 5 | External cooling | Straight shank | d1*l3*d2*l1*5D | 9 | 100 | 58 | 47 | |||
| 8 | Internal cooling | Straight shank | d1*l3*d2*l1*8D-C | 10 | 135 | 90 | 75 | |||
| 9.1~10 | 3 | External cooling | Straight shank | d1*l3*d2*l1*3D | 10 | 89 | 46 | 35 | ||
| 5 | External cooling | Straight shank | d1*l3*d2*l1*5D | 10 | 100 | 60 | 49 | |||
| 8 | Internal cooling | Straight shank | d1*l3*d2*l1*8D | 10 | 140 | 95 | 82 | |||
| 10.1~12 | 3 | External cooling | Straight shank | d1*l3*d2*l1*3D | 11 | 100 | 55 | 40 | ||
| 5 | External cooling | Straight shank | d1*l3*d2*l1*5D | 11 | 116 | 70 | 56 | |||
| 8 | Internal cooling | Straight shank | d1*l3*d2*l1*8D-C | 12 | 160 | 113 | 98 | |||
| 12.1~14 | 3 | External cooling | Straight shank | d1*l3*d2*l1*3D | 14 | 107 | 60 | 45 | ||
| 5 | External cooling | Straight shank | d1*l3*d2*l1*5D | 14 | 124 | 77 | 60 | |||
| 8 | Internal cooling | Straight shank | d1*l3*d2*l1*8D-C | 14 | 178 | 133 | 116 | |||
| 14.1~16 | 3 | External cooling | Straight shank | d1*l3*d2*l1*3D | 16 | 110 | 62 | 46 | ||
| 5 | External cooling | Straight shank | d1*l3*d2*l1*5D | 16 | 133 | 90 | 75 | |||
| 8 | Internal cooling | Straight shank | d1*l3*d2*l1*8D-C | 16 | 200 | 156 | 130 | |||
| 16~18 | 3 | External cooling | Straight shank | d1*l3*d2*l1*3D | 18 | 120 | 73 | 52 | ||
| 5 | External cooling | Straight shank | d1*l3*d2*l1*5D | 18 | 143 | 110 | 86 | |||
| 8 | Internal cooling | Straight shank | d1*l3*d2*l1*8D-C | 18 | 95 | 57 | 47 | |||
| 18.1~20 | 3 | External cooling | Straight shank | d1*l3*d2*l1*3D | 20 | 130 | 79 | 55 | ||
| 5 | External cooling | Straight shank | d1*l3*d2*l1*5D | 20 | 153 | 101 | 77 | |||
| 8 | Internal cooling | Straight shank | d1*l3*d2*l1*8D-C | 20 | 110 | 74 | 62 | |||
| Applicable table of processed materials | very suitable | suitable | ||||||||
| number | Processed materials | |||||||||
| Mild steel HB≤180 | Carbon and alloy steels | Pre hardened steel, hardened steel | stainless steel | cast iron | Ductile iron | aluminium alloy | heat-resisting alloy | |||
| ~40HRC | >50HRC | ~60HRC | ||||||||
remarks
1. If the 3 or 5 times drill bit needs internal cooling, please make a note when ordering, followed by C;
2. The handle is straight by default. If you need other handle standards, please refer to our handle materials or drawings for confirmation;
3. The default top angle is 140 degrees. If other angles are required, please mark or refer to the drawing;
4. If the order parameters are inconsistent with our company’s, you can inform our customer service personnel, and we will be enthusiastic to provide you with drawings for confirmation;
5. The cutter is not coated by default. If coating is required, please inform your requirements or processed materials
