MITSUBISHI MATERIALS CORPORATION
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DRILLS SELECTION CHART
Solid Carbide
Product
Code		 Coolant Hole Depth
(I/d)		 Shape Feature
General Drilling
MICRO MZE/MZS DRILLS
MZE External 2 MZE
  • Excellent chip disposal.
  • High efficiency, high accuracy machining.
  • Helical coolant hole enables high speed machining.(MZS type)
MZS Internal 5 MZS
MZE/MZS DRILLS
MZE External 2
3		 MZE
  • Excellent chip disposal.
  • High efficiency, high accuracy machining.
  • Helical coolant hole enables high speed machining.(MZS type)
MZS Internal 3
5		 MZS
MZE/MZS(FOR TUBE SHEET DRILLING)
MZE External 3 MZE
  • Excellent chip disposal.
  • High efficiency, high accuracy machining.
  • Helical coolant hole enables high speed machining.(MZS type)
MZS Internal 3
5		 MZS
MZS STEP DRILLS
MZS Internal 3 MZS
  • Pre-hole drilling for metric screw thread.
  • High efficiency, high accuracy machining.
  • Helical coolant hole enables high speed machining.
Deep Hole
MWS LONG DRILLS
new
MWS		 Internal 8 MWS
  • Drilling depths of 8 x diameter is possible for certain applications.
  • Possible to use with Minimum Quantity Lubricant style machining of steel and cast iron.
Aluminum Cast Iron Drilling
MAS DRILLS
MAS Internal 3 MAS
  • Specialized in aluminum and cast iron drilling.
  • High hole accuracy.
  • Pre-hole drilling for rolled tap.
  • Helical coolant hole enables high speed machining.

Brazed
Product
Code		 Coolant Hole Depth
(I/d)		 Shape Feature
General Drilling
BRA/BRS DRILLS
BRA Internal 3 BRA
  • Low thrust due to absence of a chisel edge.
  • Easy regrinding.
BRS Internal 3 BRS
  • Excellent cutting sharpness and chip discharge due to high rake type insert.
  • High efficiency, high accuracy machining.
  • Suitable for stainless steel and mild steel cutting. Possible for general steel cutting.

Brazed
Product
Code		 Coolant Hole Depth
(I/d)		 Shape Feature
General Drilling
TAW TYPE DRILLS
new
TAW		 Internal 3
5		 TAW
  • Stable drilling with indexable insert drill.
  • Exclusive design cutting edge enables superior chip control.
  • Original serrated geometry maintains accuracy.
  • Can replace an insert easily just by loosening aclamp screw.
TAF TYPE DRILLS
TAF Internal 2
3
4		 TAF
  • The holder has high rigidity.
  • 4 corner insert.
  • Various grades and chip breakers.
NPX TYPE DRILLS
NPX Internal 3
METRIC only
4
INCH only		 NPX
  • Enables highly efficient machining.
  • Enables stack drilling.