Type 620 Fractional
Tools - Drills - Core Drills - Straight Shank Core Drills for Non-Ferrous & Cast Iron

Chip ClassMaterial MachinedTool Type
20NON-FERROUS - LONG CHIPS620
40NON-FERROUS - SHORT CHIPS620
60CAST IRONS620
80LOW STRENGTH STEELS621
100MEDIUM STRENGTH STEELS621
120HIGH STRENGTH STEELS621
140HIGH TEMPERATURE ALLOYS620

Description

  • Four large right spiral polished flutes permit higher feeds and speeds
  • Carbide tips brazed to hardened tool steel body
  • 118º included chamfer angle
  • Rigid design provides maximum support for the carbide tips
  • Tool diameter tolerance: plus .000", minus .001"

Modifications

  • Modified tool diameter
  • Modified metric tool diameter
  • Closer tool diameter tolerance
  • End chamfer other than 118º included angle
  • End cutting or corner radius
  • Shortened shank or reduced shank diameter
  • Flat(s) or tang on shank
Coatings available:
  • TITANIUM NITRIDE - TiN
  • TITANIUM CARBONITRIDE - TiCN
  • ZIRCONIUM NITRIDE - ZrN
  • AL TITANIUM NITRIDE - AITiN

Use

  • Designed for economically enlarging cored, punched, or drilled holes - can remove up to 30% of the tool diameter
  • The balanced cutting action of the core drill removes considerably more material than a reamer, often eliminating the need for a final reaming or boring operation
Decimal DiameterFractional DiameterCarbide LengthFlute LengthMinimum Cut DiameterOverall LengthShank DiameterEDPPrice
1.37501 3/814 7/80.962010 1/21 3/862044 $245.35
1.40621 13/3214 7/80.984410 1/21 13/3262045 $250.85
1.43751 7/1614 7/81.006010 1/21 7/1662046 $258.20
1.46881 15/3214 7/81.025010 1/21 15/3262047 $265.90
1.50001 1/214 7/81.050010 1/21 1/262048 $271.70
1.21881 7/3214 7/80.853010 1/21 7/3262039 $212.15
1.25001 1/414 7/80.875010 1/21 1/462040 $213.05
1.28121 9/3214 7/80.897010 1/21 9/3262041 $228.25
1.31251 5/1614 7/80.919010 1/21 5/1662042 $234.55
1.34381 11/3214 7/80.940010 1/21 11/3262043 $239.50
1.06251 1/167/84 7/80.74409 1/21 1/1662034 $161.55
1.09381 3/3214 7/80.766010 1/21 3/3262035 $188.20
1.12501 1/814 7/80.787010 1/21 1/862036 $188.20
1.15621 5/3214 7/80.809010 1/21 5/3262037 $205.40
1.18751 3/1614 7/80.831010 1/21 3/1662038 $211.40
0.906229/327/84 7/80.63409 1/229/3262029 $149.50
0.937515/167/84 7/80.65609 1/215/1662030 $149.50
0.968831/327/84 7/80.67809 1/231/3262031 $155.20
1.000017/84 7/80.70009 1/2162032 $158.05
1.03121 1/327/84 7/80.72209 1/21 1/3262033 $159.40
0.75003/47/84 3/80.52508 1/43/462024 $134.35
0.781225/327/84 3/80.54708 1/425/3262025 $137.25
0.812513/167/84 7/80.56909 1/213/1662026 $141.10
0.843827/327/84 7/80.59109 1/227/3262027 $148.60
0.87507/87/84 7/80.61209 1/27/862028 $148.60
0.593819/323/44 3/80.41608 1/419/3262019 $131.60
0.62505/83/44 3/80.43808 1/45/862020 $131.60
0.656221/323/44 3/80.45908 1/421/3262021 $133.10
0.687511/167/84 3/80.48108 1/411/1662022 $134.35
0.718823/327/84 3/80.50308 1/423/3262023 $134.35
0.43757/163/43 7/80.30607 1/47/1662014 $124.85
0.468815/323/44 1/80.32807 1/215/3262015 $124.85
0.50001/23/44 3/80.35008 1/41/262016 $124.85
0.531217/323/44 3/80.37208 1/417/3262017 $125.30
0.56259/163/44 3/80.39408 1/49/1662018 $125.30
0.37503/85/83 1/20.26206 3/43/862012 $124.85
0.406213/325/83 5/80.2840713/3262013 $124.85

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