Page 91 - Techniks Catalog 2017

BT40 Precision End Mill Holders

Techniks Certified Tooling Features
• High precision bore (H5) is best in industry
• Balanced to 15,000 RPM at G6.3
• Taper ground to AT3 for maximum spindle contact

d2
d1
Techniks Certified for bore and taper tolerances
AT3 precision ground taper L1
BT40 Extended Length End Mill Holders

Part No. Description d1 L1 d2
17140-1/8-4 BT40 x 1/8" I.D. - 4" 1/8" 4" .68"
17140-3/16-4 BT40 x 3/16" I.D. - 4" 3/16" 4" .68"
17140-1/4-4 BT40 x 1/4" I.D. - 4" 1/4" 4" .78"
17140-3/8-4 BT40 x 3/8" I.D. - 4" 3/8" 4" 1.0"
17140-1/2-4 BT40 x 1/2" I.D. - 4" 1/2" 4" 1.25"
17140-5/8-4 BT40 x 5/8" I.D. - 4" 5/8" 4" 1.5"
17140-3/4-4 BT40 x 3/4" I.D. - 4" 3/4" 4" 1.75"
17140-7/8-5 BT40 x 7/8" I.D. - 5" 7/8" 5" 1.75"
17140-1-5 BT40 x 1.0" I.D. - 5" 1.0" 5" 2"

Our Rigid Reach End Mill holders are great for machining in tight areas at
extended length where tolerance is important. The tapered design improves
rigidity and overall cutting performance.

30% more rigidity using taper design.

d2
d1
Techniks Certified for bore and taper tolerances
AT3 precision
BT40 Rigid Reach End Mill Holders ground taper L1

Part No. Description d1 L1 d2
17140-1/8-5.0-RR BT40 x 1/8" I.D. - 5" 1/8" 5" .78"
17140-3/16-4.72-RR BT40 x 3/16" I.D. - 4.72" 3/16" 4.72" .78"
17140-1/4-4.72-RR BT40 x 1/4" I.D. - 4.72" 1/4" 4.72" .78"
17140-3/8-4.72-RR BT40 x 3/8" I.D. - 4.72" 3/8" 4.72" 1.0"
17140-1/2-4.72-RR BT40 x 1/2" I.D. - 4.72" 1/2" 4.72" 1.38"
17140-3/4-6-RR BT40 x 3/4" I.D. - 6" 3/4" 6" 1.38"

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