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SUBORUI DIN345-compliant HSS M2 morse taper shank twist drill bits are purpose-engineered for heavy-duty, high-torque industrial drilling operations, delivering unmatched stability and power transfer in drill presses, lathes, and CNC machining centers.
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Manufactured 100% in strict accordance with the German DIN345 industrial standard (global benchmark for morse taper shank drill bits), these bits feature premium M2 high-speed steel construction, industrial black oxide finish, and precision fully ground manufacturing. They are the trusted choice for global B2B partners including heavy machinery manufacturers, mold & die workshops, metal fabrication plants, hardware distributors, and industrial MRO service providers, delivering consistent performance in high-volume, high-stress production environments.
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Core Design & Material Advantages
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Premium M2 High-Speed Steel Base Material
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M2 is the industry-leading high-performance HSS for heavy-duty industrial drilling, offering exceptional balance of toughness and wear resistance:
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Superior Red Hardness: Maintains cutting edge hardness and sharpness at temperatures up to 550°C, outperforming standard HSS by 30-50% in service life
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Exceptional Impact & Torsion Resistance: Withstands extreme torque loads from drill presses and lathes, eliminating shank breakage and tool failure
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Optimal Cost-Performance Ratio: Delivers near-cobalt grade stability at a competitive price point, perfect for bulk industrial use
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100% Strict DIN345 Standard Compliance (Core Differentiator)
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Every drill bit is manufactured to exact DIN345 dimensional and geometric specifications, ensuring:
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Perfect interchangeability with all DIN345-compliant morse taper tool holders, drill presses, lathes, and CNC machines worldwide
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Unified morse taper shank tolerances (MT1-MT5 standard sizes) for zero-slip, maximum power transfer
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Guaranteed compatibility with European and global industrial production lines, eliminating tooling adaptation costs
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Industrial Black Oxide Finish
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The full-coverage black oxide treatment delivers critical functional benefits for heavy-duty drilling:
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Enhances wear resistance and reduces friction, enabling smoother chip evacuation and longer tool life
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Improves heat dissipation during continuous high-torque drilling, protecting the cutting edge from thermal fatigue
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Delivers excellent corrosion resistance, extending shelf and service life in harsh workshop environments
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Precision Fully Ground CNC Manufacturing
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Every drill bit undergoes full CNC grinding across the entire flute, shank, and cutting edge, ensuring:
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Ultra-tight concentricity and minimal radial runout for straight, round, burr-free holes
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Consistent batch-to-batch performance, critical for automated production lines to reduce scrap rates
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Optimized flute geometry for unobstructed chip removal, even in deep-hole drilling in hard metals
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135° Self-Centering Split Point
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True self-centering capability eliminates the need for pre-drilling or center punching, preventing drill wander and ensuring precise hole placement
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Reduced cutting thrust lowers stress on both the drill bit and your equipment, extending machine lifespan
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Faster penetration in hard, dense materials, boosting overall production efficiency
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Morse Taper Shank Design
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Zero-Slip Power Transfer: Morse taper shank creates a friction-locked fit in tool holders, eliminating slippage even under maximum torque loads
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Universal Industrial Compatibility: Standard MT1-MT5 sizes fit all global industrial drill presses, lathes, and CNC machining centers
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Reinforced Shank Structure: Precision-forged taper shank with increased torsional strength prevents breakage at the shank-flute junction
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D*L2*L1*Morse
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D*L2*L1*Morse
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D*L2*L1*Morse
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D*L2*L1*Morse
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D*L2*L1*Morse
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6*57*138*1
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18*130*228*2
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30*175*296*3
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54*230*417*5
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78*260*514*6
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6.5*63*144*1
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18.5*135*233*2
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31*180*301*3
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55*230*417*5
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79*260*514*6
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7*69*150*1
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19*135*233*2
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32*185*334*4
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56*230*417*5
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80*260*514*6
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7.5*69*150*1
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19.5*140*238*2
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33*185*334*4
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57*235*422*5
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81*265*519*6
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8*75*156*1
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20*140*238*2
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34*190*339*4
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58*235*422*5
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82*265*519*6
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8.5*75*156*1
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20.5*145*243*2
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35*190*339*4
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59*235*422*5
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83*265*519*6
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9*81*162*1
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21*145*243*2
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36*195*344*4
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60*235*422*5
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84*265*519*6
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9.5*81*162*1
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21.5*150*248*2
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37*195*344*4
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61*240*427*5
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85*265*519*6
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10*87*168*1
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22*150*248*2
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38*200*349*4
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62*240*427*5
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86*270*524*6
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10.5*87*168*1
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22.5*155*253*2
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39*200*349*4
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63*240*427*5
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87*270*524*6
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11*94*175*1
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23*155*253*2
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40*200*349*4
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64*245*432*5
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88*270*524*6
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11.5*94*175*1
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23.5*155*276*3
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41*205*354*4
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65*245*432*5
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89*270*524*6
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12*101*182*1
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24*160*281*3
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42*205*354*4
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66*245*432*5
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90*270*524*6
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12.5*101*182*1
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24.5*160*281*3
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43*210*359*4
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67*245*432*5
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91*275*529*6
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13*101*182*1
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25*160*281*3
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44*210*359*4
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68*250*437*5
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92*275*529*6
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13.5*108*189*1
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25.5*165*286*3
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45*210*359*4
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69*250*437*5
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93*275*529*6
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14*108*189*1
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26*165*286*3
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46*215*364*4
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70*250*437*5
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94*275*529*6
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14.5*114*212*2
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26.5*165*286*3
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47*215*364*4
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71*250*437*5
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95*275*529*6
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15*114*212*2
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27*170*291*3
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48*220*369*4
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72*255*442*5
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96*280*534*6
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15.5*120*218*2
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27.5*170*291*3
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49*220*369*4
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73*255*442*5
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97*280*534*6
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16*120*218*2
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28*170*291*3
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50*220*369*4
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74*255*442*5
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98*280*534*6
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16.5*125*223*2
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28.5*175*296*3
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51*225*412*5
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75*255*442*5
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99*280*534*6
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17*125*223*2
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29*175*296*3
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52*225*412*5
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76*260*447*5
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100*280*534*6
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17.5*130*228*2
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29.5*175*296*3
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53*225*412*5
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77*260*514*6
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D*L2*L1*Morse
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D*L2*L1*Morse
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D*L2*L1*Morse
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D*L2*L1*Morse
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18*130*228*2
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30*175*296*3
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54*230*417*5
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78*260*514*6
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18.5*135*233*2
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31*180*301*3
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55*230*417*5
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79*260*514*6
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19*135*233*2
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32*185*334*4
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56*230*417*5
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80*260*514*6
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19.5*140*238*2
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33*185*334*4
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57*235*422*5
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81*265*519*6
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20*140*238*2
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34*190*339*4
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58*235*422*5
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82*265*519*6
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20.5*145*243*2
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35*190*339*4
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59*235*422*5
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83*265*519*6
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21*145*243*2
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36*195*344*4
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60*235*422*5
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84*265*519*6
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21.5*150*248*2
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37*195*344*4
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61*240*427*5
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85*265*519*6
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22*150*248*2
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38*200*349*4
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62*240*427*5
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86*270*524*6
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22.5*155*253*2
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39*200*349*4
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63*240*427*5
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87*270*524*6
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23*155*253*2
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40*200*349*4
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64*245*432*5
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88*270*524*6
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23.5*155*276*3
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41*205*354*4
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65*245*432*5
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89*270*524*6
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24*160*281*3
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42*205*354*4
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66*245*432*5
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90*270*524*6
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24.5*160*281*3
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43*210*359*4
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67*245*432*5
|
91*275*529*6
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25*160*281*3
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44*210*359*4
|
68*250*437*5
|
92*275*529*6
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25.5*165*286*3
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45*210*359*4
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69*250*437*5
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93*275*529*6
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26*165*286*3
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46*215*364*4
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70*250*437*5
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94*275*529*6
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26.5*165*286*3
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47*215*364*4
|
71*250*437*5
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95*275*529*6
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27*170*291*3
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48*220*369*4
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72*255*442*5
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96*280*534*6
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27.5*170*291*3
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49*220*369*4
|
73*255*442*5
|
97*280*534*6
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28*170*291*3
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50*220*369*4
|
74*255*442*5
|
98*280*534*6
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28.5*175*296*3
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51*225*412*5
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75*255*442*5
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99*280*534*6
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29*175*296*3
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52*225*412*5
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76*260*447*5
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100*280*534*6
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29.5*175*296*3
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53*225*412*5
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77*260*514*6
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