Check the listing for details. 12 Pcs 3/4" Carbide Boring Bars 3'' Precision Boring Head With R8 Shank Set. Condition: New. Listed at 113.35 USD. Feature： 3" Boring Head .0005/0-100 Graduation 3/4" Boring Bar hole diameter 3/4" Cross hole diameter 1" maximum offset 1 1/2"-18 thread size R8 shank can be fitted on a 2", 3", or 4" boring head with 1.5"-18 thread size 12 PCS carbide tip boring bar set 12 pieces in one set 3/4" shank diameter Carbide tipped for steel and alloy steel Plastic case included For R8 spindle machines Hardened and ground Shank Dia. 3/4" Product application： Shank Diameter 3/4" 12 pcs Overall Length Bore Depth Min. Bore 3-1/8" 1-1/8" 7/16" 3-11/16" 1-11/16" 7/16" 4-1/4" 2-1/4" 7/16" 3-1/2" 1-1/2" 9/16" 4-1/4" 2-1/4" 9/16" 5" 3" 9/16" 3-7/8" 1-7/8" 11/16" 4-13/16" 2-13/16" 11/16" 5-3/4" 3-3/4" 11/16" 4-1/4" 2-1/4" 13/16" 5-3/8" 3-3/8" 13/16 " 6-1/2" 4-1/2" 13/16" Description： Designed so that the same bar can bore flat bottomed holes or face Alloy steel shanks hardened and ground Ccarbide for steel and alloy steel 12 pc Set Package List: 3 Precision Adjustable Boring Head w/R8 Arbor 12Pcs 3/4" Carbide Boring Bars Notes: Pls check your old picture or model when you order it. If you are uncertain about the item,please feel free to contact us for confirm. Sorry for any inconvenience caused. Full refund guarantee if does not fit. Thank you for your understanding Introduction of Promotion Fold over fold Payment Shipping handling time: 1~3 day Returns Refund is valid within 30 days after the payment date Item must be returned in original packing same as reached Contact Us If you are satisfied with the product you received,please leave us positive feedback and 5 scores . Please give us the opportunity to resolve any problem. We understand the concerns and frustrations you might have, and will try our best to resolve the issues. We care about our valued customers, and will always try to help you. So if you have any problems, please e-mail us immediately. All rights reserved. Hot Item 100Pack 4-1/2"×7/8'' 40 Grit T29 Premium Zirconia Flap Disc Sanding Grinding US USD 57.02 ER11/ER16/ER20/ER25/ER32/ER40 Spring Collet Set For CNC Milling Lathe Machine USD 11.70 6 Pack E7018 1/8 Inch 10-lbs Premium Arc Welding Rods Carbon Steel Electrode Rod USD 92.74 3 HP 3450RPM Electric Motor Compressor Duty 56 Frame 1Phase 115-230V New USD 121.73 #40SS Stainless Steel Roller Chain x 10 feet+Free Connecting Links 1 connector USD 41.64 New List Item Safety Work Gloves MicroFoam Nitrile Coated Foam Gloves L-Size/12 Pairs USD 32.60 Safety Work Gloves MicroFoam Nitrile Coated Foam Gloves M-Size/6 Pairs USD 21.80 28 Nut and Bolt Thread Gauge Thread Checker 14 Metric & 14 Standard Sizes USD 30.82 2.75" 4-Jaw With 1-Inch x 8TPI Thread Self-Centering Keyed Lathe Chuck Set USD 69.87 Safety Work Gloves MicroFoam Nitrile Coated Foam Gloves M-Size/12 Pairs USD 31.88