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Hole Making Catalog - 93 / 124 Pages

■ SPOTTING DRILL RECOMMENDATIONS

SPOTTINGDRILLRECOMMENDATIONS FOR SOLID CARBIDE AND QWIK TWIST DRILLS >

Spotting Drill Point Angle

BEST Spotting drill angle is greater than the drill point angle. First contact is at the drill point.
ՕBest drill centering possibility.
Drill loading increases with penetration. >

Drill Point Angle Spotting Drill Point Angle

ACCEPT ABLE Spotting drill angle is the same as the drill point angle. ՕTool loading proble m s can occur due to i mm ediate full engage m ent.Chatter m ay be a proble m .ՕReduced feed at entry reco >

Drill Point Angle

mm ended.Good drill centering. >

Spotting Drill Point Angle

NOT RECOMMENDED WITH CARBIDE Spotting drill angle is less than the drill point angle. ՕPoint contact along cutting lips or corner - drill point should contact spotted hole first..Chipping likely in these areas. >

Drill Point Angle

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Hole Making Catalog
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  2. P. 88

    INGERSOLL ISO MATERIAL GROUPS ISO Material Condition Tensile Strength (Kpsi) Hardness HB Material Number Non - Alloy Steels...
  3. P. 89

    ■ INGERSOLL MATERIAL GROUPS 1 1010 Ck10 1 1025 C25E, Ck25 1 1213 9SMn28 1 1215 9SMn36 1 1015, 1017 ...
  4. P. 90

    INGERSOLL MATERIAL GROUPS Material AISI/SAE DIN Group Material Spec Material Spec Material AISI/SAE DIN Group Material...
  5. P. 91

    ■ OPERATING GUIDELINES- SERIES FAK AND SERIES YSERIES FAKӔ DRILLSERIES YӔ (SPOT IN) DRILL MaterialCuttingFeed (in./rev.)ISONu MaterialCuttingFeed...
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    ■ DR SOLID CARBIDE DRILLS OPERATING GUIDELINES (CONT.) MaterialCuttingFeed (in/rev)Feed (in/rev)Feed (in/rev)Feed (in/rev)ISONu m ber Speed (SFM)...
  9. P. 95

    REPLACEABLE POINT DRILLS OPERATING GUIDELINES ■ Cutting Material Speed ISO Number Vc sfm Feed vs. Drill Diameter...
  10. P. 96

    mwBScnkWii Jjj1™ REPLACEABLE POINT DRILLS DRILL POINT REPLACEMENT INDICATIONS 1. Limit cutting edge wear to .008" to .012"....
  11. P. 97

    ■ REPLACEABLE POINT DRILLS COOLANT Through the toolCoolant No Coolant mm endedNot Reco mm ended External CoolantAcceptable up to Depth=2xDia External...
  12. P. 98

    ■ REPLACEABLE POINT DRILLS MOUNTINGADRILLPOINT >Fig. 1 Fig. 2 Fig. 3 Fig. 4 Fig. 5 Check Drill Point Compatibility!Drill points should always...
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