3 Inch Rough Boring Head With R8 Shank And 8pcs pcs 3/4 Inch Indexable Boring Bar Set

Description: 3 Inch Rough Boring Head With R8 Shank And 8pcs pcs 3/4 Inch Indexable Boring Bar Set Specification: Material: High speed steel - high heads Head Size: 3 " Diameter: 75mm Height: 80mm Offset max: 25mm Tensile bar diameter: 18mm Min. Graduation: 0.01mm Diameter of hole: 12-225mm - Cutting to punch Diameter of drilling heads: 75mm / 3 " Deburring capacity: 12-255mm Diameter of hard tracts: 3 " Bar thread: 3/4 " -Looks tall of boring Thread Diameter: 7 / 16X20UNF Length: 132.5 mm Package Included: 1pc x 3 '' Drilling head 1pc x R8 Shank 1pc x head head thread 1 x 1-1 / 2-18 8pcs x 3/4 '' toothed bars Features: -The micrometer screw provides 0.001 "readability accuracy and ease of adjustment - The double bar support allows for a greater range of drilling with an extreme offset condition -1 DIV = 0.001 " 0.001" meaning on dial 0-100, when rotating the dial for 1 division / graduation, the drilling head stroke is 0.0005 "in the radius of movement, 0.001" of movement Of diameter. Notice: 1. Please allow a bit error due to manual measurement. please make sure you do not mind before you bid. 2. The color may have different as the difference display, pls understand. More Details: