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DIN338 High Speed Steel Metal Drilling HSS Twist Drill Bits for Metal Drilling
1, PROCESS:MILLED ROLLED,FULLY-GROUND
2,MATERIALS:HSS OR HSS-COBALT
3,APPLICATION MATERIAL:STEEL,CASTIRON OR OTHER SOFT METAL
4,SURFACE TREATMENT:WHITE,BLACK,TIN-COATED
5,SIZE:0.2-30.0mm
stub drill:DIN1897
normal drill:DIN338
long drill:DIN340,longer drill:DIN1869
Diameter D | flute length L2 |
total length L1 |
Diameter D | flute length L2 |
total length L1 |
0.20 | 2.5 | 19 | 1.80 | 22 | 46 |
0.22 | 2.5 | 19 | 1.85 | 22 | 46 |
0.25 | 3 | 19 | 1.90 | 22 | 46 |
0.30 | 3 | 19 | 1.95 | 24 | 49 |
0.35 | 4 | 19 | 2.00 | 24 | 49 |
0.38 | 4 | 19 | 2.05 | 24 | 49 |
0.40 | 5 | 20 | 2.10 | 24 | 49 |
0.45 | 5 | 20 | 2.15 | 27 | 53 |
0.48 | 5 | 20 | 2.20 | 27 | 53 |
0.50 | 6 | 22 | 2.25 | 27 | 53 |
0.52 | 6 | 22 | 2.30 | 27 | 53 |
0.55 | 7 | 24 | 2.35 | 27 | 53 |
0.60 | 7 | 24 | 2.40 | 30 | 57 |
0.65 | 8 | 26 | 2.45 | 30 | 57 |
0.70 | 9 | 28 | 2.50 | 30 | 57 |
0.75 | 9 | 28 | 2.55 | 30 | 57 |
0.80 | 10 | 30 | 2.60 | 30 | 57 |
0.85 | 10 | 30 | 2.65 | 30 | 57 |
0.90 | 11 | 32 | 2.70 | 33 | 61 |
0.95 | 11 | 32 | 2.75 | 33 | 61 |
1.00 | 12 | 34 | 2.80 | 33 | 61 |
1.05 | 12 | 34 | 2.85 | 33 | 61 |
1.10 | 14 | 36 | 2.90 | 33 | 61 |
1.15 | 14 | 36 | 2.95 | 33 | 61 |
1.20 | 16 | 38 | 3.00 | 33 | 61 |
1.25 | 16 | 38 | 3.10 | 36 | 65 |
1.30 | 16 | 38 | 3.20 | 36 | 65 |
1.35 | 18 | 40 | 3.30 | 36 | 65 |
1.40 | 18 | 40 | 3.40 | 39 | 70 |
1.45 | 18 | 40 | 3.50 | 39 | 70 |
1.50 | 18 | 40 | 3.60 | 39 | 70 |
1.55 | 20 | 43 | 3.70 | 39 | 70 |
1.60 | 20 | 43 | 3.80 | 43 | 75 |
1.65 | 20 | 43 | 3.90 | 43 | 75 |
1.70 | 20 | 43 | 4.00 | 43 | 75 |
1.75 | 20 | 46 | 4.10 | 43 | 75 |
More Hss Drill Bit Selection
Surface Finishing
Bright/Black&Gold/Coffee Color/Rainbow Color/The Coating/Black Finishing/Zirconium Coating
Packing
inside:
Certificate:
Numerous new products developed and manufactured by Borui obtain national intellectual property patern certificate,and its products are well sold at dozens of countries and areas in the world.The company has been certified by ISO9001 management system.
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Corner of Workshop
Jiangsu Borui Tools Co.,Ltd. is located at home of tools in China,the largeest production base for twist drill in China-Houxiang,Danbei Town of Danyang.It is located at the Yangtze River Delta,airport,pport,railway and expressway create convenient transportation,and it is well-placed geographically with beautiful and pleasant environment.sincerely welcomes friends from both home and abroad to come to us for business and cooperation.
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