Drilling Tools

25 PCS HSS Cobalt Left Hand Drill Bit Set for Metal

DANYANG DAMING TOOLS CO., LTD.
  • Customized:Customized
  • Standard:DIN
  • Length:Jobber-length
  • Type:Twist Drill Bit
  • Material:Cobalt Steel Alloys
  • Usage:Metal Drilling, Drilling Metal

Base Info

  • Model NO.:DM4-HS026
  • Surface Coated:Coffee
  • Hardness:58-63 HRC
  • Flute Type:Spiral Flute
  • Model of Making:Full Ground
  • Transport Package:Metal Box
  • Specification:1,16′′-1,4′′MM
  • Trademark:DM
  • Origin:Danyang City, Jiangsu Province, China
  • HS Code:820750900
  • Production Capacity:10000 Sets Per Month

Description


H.S.S Grade
Chemical Composition(%)
4241
W:1.50-2.50;  Mo:0.60-1.20;  Cr:3.80-4.40;  V:0.50-0.70 
4341
W:3.50-4.50;  Mo:2.50-3.50;  Cr:.3.80-4.40;  V:1.20-1.80 
99341
W:8.50-9.50;  Mo:2.70-3.30;  Cr:.3.80-4.40;  V:1.30-1.70
6542(M2)
W:5.50-6.75;  Mo:4.50-5.50;  Cr:.3.80-4.40;  V:1.75-2.20
M35
W:6.00-6.70;  Mo:4.70-5.20;  Cr:.3.80-4.50;  V:1.70-2.00;  Co:4.50-5.50
M42
W:1.15-1.85;  Mo:9.00-10.0;  Cr:.3.50-4.25;  V:0.95-1.35;  Co:7.75-8.75

Diamond Core Bits



OUR CUSTOMERS PRAISE

25PCS HSS Twist Drill Bits Set with Metal Box

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