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MILLING • Tool Holder Dual Contact
CAT40 Dual Contact Tool Holder Taper Contact Taper Contact
Flange Contact Flange Contact
• SHARS Dual Contact tool holder can only be used on machine center with dual
contact spindle Simultaneous Fitting on taper contact and flange face
contact eliminates the gap between tool holder and spindle
• With simultaneous fit between the spindle taper face and flange face of the tool to improve rigidity and accuracy
holder, dual contact tooling eliminates the 1/8” gap between the flange face of the
tool holder and the spindle nose, compared to the standard tool holder with the 1/8"
gap, to increase rigidity, minimize vibration, reduce runout, and greatly improve
machining finished, performance improvement is tremendous in heavy metal
removal rate or high speed machining, deep or large diameter boring, especially
in extend length heavy cutting, and also in improving tool life of end mill due to
minimum vibration
• Dual contact tool holders are manufactured to micron precision specification with
strictly controlled dimension and tolerance to match with dual contact spindle
• Taper accuracy is ground exceeding AT3 standard for optimal T.I.R
• Simultaneous fit of taper and face will prevent vibration due to heavy or
high speed cutting and reduces fretting corrosion on taper to extend both spindle
and tool holder life
• At high spindle rotating speed (over 10000 RPM), dual contact tool holder prevents
the tool holder being pulled into the spindle due to centrifugal force and heat,
eliminating variation in Z axis projection length
• Many of the world’s leading CNC machine center manufacturers already offer dual
contact spindle as standard equipment
D
L
Dual Contact ER Tool Holder
Taper Collet Nose Diameter Collet Nut Projection Max Order 202-6688
BT30 Series D Style L Shank No.
202-6691
CAT40 ER-16 1.10" Hex 2.36" .406" 202-6838 • Balanced to 20,000 RPM at G2.5
ER-16 1.10 Hex 3.54 .406 202-6839 • Runout taper to bore within 3
ER-16 1.10 Hex 4.13 .406 202-6840
ER-20 1.38 Hex 2.36 .512 202-6841 Microns (0.0001") T.I.R.
ER-25 1.65 Slotted 3.54 .63 202-6842 • Nickel plated coating finished
ER-25 1.65 Slotted 2.36 .63 202-6628
ER-32 1.97 Slotted 2.36 .788 202-6843
ER-32 1.97 Slotted 3.54 .788 202-6844
ER11 0.75” Hex 3” .275” 202-7033
ER11 0.75 Hex 4 .275 202-7034
ER16 1.08 Hex 2.5 .406 202-6688
ER16 0.87 Mini 2.5 .406 202-7035
ER16 1.08 Hex 3 .406 202-7036
ER16 1.08 Hex 4 .406 202-6689
ER16 0.87 Mini 4 .406 202-7037
ER16 1.08 Hex 5 .406 202-7038
ER16 1.08 Hex 6 .406 202-6690
ER20 1.102 Mini 2.5 .512 202-7039
ER20 1.34 Hex 3 .512 202-7040
ER20 1.34 Hex 3.5 .512 202-7041
ER20 1.102 Mini 3.5 .512 202-7042
ER20 1.102 Hex 4 .512 202-7043
ER32 1.97 Slotted 1.85 .788 202-7403
ER32 1.97 Slotted 2.35 .788 202-7403
ER32 1.97 Slotted 3 .788 202-6691
ER32 1.97 Slotted 4 .788 202-6692
ER32 1.97 Slotted 6 .788 202-6693
ER40 2.48 Slotted 3 1.023 202-6694
ER40 2.48 Slotted 4 1.023 202-7405
154 CALL 630-443-6822•FAX 888-612-8878
