The B491 Double-Ended Boring Bar is a heavy-duty, precision tool engineered for accuracy and durability in metalworking applications. Built from hardened and tempered tool steel, it offers excellent resistance to wear and deformation. This boring bar is ideal for both 90-degree and 45-degree internal cutting, giving machinists the flexibility to tackle various operations with one tool. Designed for use with 3/16" tool bits (optional), it’s a dependable choice for lathe work where clean, controlled cuts are essential.
This robust boring bar set is tailored for precision boring and facing tasks. Its double-ended design allows quick angle changes without the need to swap tools. Whether you're working on small-batch machining or repeated operations, the B491 delivers consistent results and professional-grade performance.
Features
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Double-ended design with 90° and 45° cutting angles
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Made from precision ground, hardened and tempered tool steel
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Resistant to heat, stress, and wear during heavy-duty operations
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Tool bit compatibility offers flexibility for custom setups
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Ideal for use in lathes and precision metal cutting tasks
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Clean slot in holder ensures tight grip and quick adjustments
Specifications
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Holder Size: 5/8" square
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Bar Size: 7/16" x 5-1/4"
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Tool Bit Size: 3/16" (sold separately)
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Material: Hardened and tempered tool steel
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Cutting Angles: 90 degrees and 45 degrees
Comes With
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One double-ended boring bar
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One 5/8" square tool holder with securing slot
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One hex key for tightening and adjustments
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Tool bits not included (compatible with 3/16" bits)
