Page 193 - Techniks Catalog 2017

90˚ Lead Angle Rough Heads – Range: 8.661 to 19.685"

Features
• Two AccuSET .0001" graduated dials allow setting
both inserts simultaneously
• Top quality steel alloy hardened to 58-60 HRc
• Precision ground components for accuracy

SafetySET feature not available on large boring
heads due to their design differences.
Inserts & Toolholders Extensions Retention
Cartridges pg. 203 & Reducers Knobs
pg. 199 pg. 213 pg. 228
Use 90˚ lead angle heads when
performing blind boring, or if Adjustment Is This Easy .0001" dial allows operators to quickly
the desired hole is not exactly on AccuSET graduated adjustment dial set the finish head to any diameter.
center with your pilot hole. The Procedure:
90˚ lead will have less tendency Adjustable 1. Loosen locking screw
to follow the pilot hole. in 0.0001"
increments 2. Remove any backlash
3. Rotate scale to desired setting
4. Tighten locking screw
Metric dials available

D
d

Use large boring heads with direct mount toolhold-
ers or ADT 100-50 adapter and a toolholder with L
a 100mm connection. See "Toolholders for Large
Boring Heads"on page 188.
90˚ Large Rough Heads

Range D d
Part No. Description Min Max Cartridge (mm) (mm) L Insert Screw
6390210 D-300-90-3CT-300 8.661" 12.598" 3CT-90-300 202 60 3.54" TCMT 32.5_ 6811262
6390215 D-300-90-3CT-402 8.661" 12.598" 3CT-90-402 202 60 3.54" CCMT 43_ 6811266
6390220 D-300-90-3CT-402N 8.661" 12.598" 3CT-90-402N 202 60 3.54" CNMG 43_ 6811270
6390225 D-400-90-3CT-300 11.417" 15.748" 3CT-90-300 272 60 3.54" TCMT 32.5_ 6811262
6390230 D-400-90-3CT-402 11.417" 15.748" 3CT-90-402 272 60 3.54" CCMT 43_ 6811266
6390235 D-400-90-3CT-402N 11.417" 15.748" 3CT-90-402N 272 60 3.54" CNMG 43_ 6811270
6390240 D-500-90-3CT-300 14.567" 19.685" 3CT-90-300 352 60 3.54" TCMT 32.5_ 6811262
6390245 D-500-90-3CT-402 14.567" 19.685" 3CT-90-402 352 60 3.54" CCMT 43_ 6811266
6390250 D-500-90-3CT-402N 14.567" 19.685" 3CT-90-402N 352 60 3.54" CNMG 43_ 6811270
SafetySET feature not available on large boring heads due to their design differences.

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