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Front Mounting/Low Profile Chucks

3 & 4 JAW FRONT MOUNTING SELF-CENTERING SCROLL CHUCKS
With Top Reversible Jaws
  • For use with applications where back mounting chucks cannot be used
  • 2-piece master jaw style jaws with top reversible jaws for ID and OD workholding
  • Semi-steel body
  • Also available in forged steel body
3 Jaw Chuck
Mounting Bolts
Chuck Size Thru Hole Weight (lbs) Part Number Price Each Thread Number of Bolts
5” 1.260” 10 BI-7812-0500
$511.72 5/16-18 x 2-1/4 3
6” 1.654” 17 BI-7812-0600
$573.90 3/18-16 x 2-3/4 3
8” 2.165” 32 BI-7812-0800
$660.04 3/18-16 x 3-1/4 6
10” 2.992” 52 BI-7812-1000
$884.75 1/2-13 x 3-1/2 6
12” 4.055” 87 BI-7812-1200
$1,410.83 5/8-11 x 4 6
15-3/4” 5.354” 163 BI-7812-1600
$2,223.92 5/8-11 x 4-1/2 6
4 Jaw Chuck
Mounting Bolts
Chuck Size Thru Hole Weight (lbs) Part Number Price Each Thread Number of Bolts
5” 1.260” 10 BI-7814-0500
$643.43 5/16-18 x 2-1/4 3
6” 1.654” 17 BI-7814-0600
$693.50 3/18-16 x 2-3/4 3
8” 2.165” 32 BI-7814-0800
$813.09 3/18-16 x 3-1/4 6
10” 2.992” 52 BI-7814-1000
$1,052.17 1/2-13 x 3-1/2 6
12” 4.055” 87 BI-7814-1200
$1,635.67 5/8-11 x 4 6
15-3/4” 5.354” 163 BI-7814-1600
$2,780.64 5/8-11 x 4-1/2 6
BASE PLATES FOR FRONT MOUNTING CHUCKS
  • Designed for use with BISON 3 and 4 jaw front mounting self-centering lathe chucks
  • Ideal for use on milling and drilling machines as well as on rotary tables with 3/6 and 4/8 slots
  • Base plates are supplied with four mounting bolts with t-nuts and one MT pin
Chuck Size MT Pin Part Number Price Each
5” 2 BI-7872-305
$228.57
6” 3 BI-7872-306
$226.25
8” 3 BI-7872-308
$288.54
10” 3 BI-7872-310
$317.80
12-1/2” 4 BI-7872-312
$508.13
15-3/4” 5 BI-7872-316
$635.93
4 JAW MACHINE FIXTURE
Low Profile, Self-Centering Forged Steel Body
  • Forged steel body with rectangular base
  • Ideal for all types of milling, grinding, drilling and tapping operations on vertical and horizontal CNC machines as well as conventional milling and grinding machines
  • All surfaces are hardened and precision ground, square and parallel to an accuracy of 0.0008”
  • Repeatability within 0.0004” TIR
  • Ideal for pallet applications
  • Comes with 1 set of two-piece reversible jaws (hard top and hard master jaws), 1 ratchet wrench, 1 angled wrench and 1 set of 2 mounting bolts with T-nuts and two T-slot keys
Clamping Range
Dia A Q B K C D E E1 F G H M=P S T OD ID Part Number Price Each
6” 8.46 6.50 2.48 1.69 .709 1.772 .551 .709 .980 .433 2.64 5.669 .55 1.65 .1181-6.30 1.65-5.75 BI-7640-006
$1,339.90
8” 9.84 7.87 2.84 1.77 .709 2.362 .551 .709 1.06 .551 3.15 6.850 .55 2.17 .1575-7.48 1.97-7.84 BI-7640-008
$1,694.20
10” 12.2 9.84 3.27 2.05 .846 3.150 .709 .709 1.25 .630 3.74 8.583 .71 2.99 .1968-9.84 2.28-9.25 BI-7640-010
$1,958.42
CHUCK KEYS
  • Crafted from high quality tool steel
  • Available in standard and self-ejecting models
  • Sizes available from 1/4” to 9/16” square head size
Standard Self-Eject
Square Head Size Part Number Price Each Part Number Price Each
1/4" A-3900-4865
$9.00 A-3900-4856
$10.65
5/16" A-3900-4866
$9.00 A-3900-4857
$10.65
3/8" A-3900-4867
$11.50 A-3900-4853
$13.15
7/16" A-3900-4868
$11.50 A-3900-4854
$13.15
1/2" A-3900-4869
$11.50 A-3900-4855
$13.15
9/16" A-3900-4870
$12.50 A-3900-4858
$15.65