Sine Plates & Sine Tools

Sine plates and sine bars from Suburban Tool set precise angles for surface grinding, layout, and inspection using gage-block stacks against calibrated 5" or 10" centers. These hardened, ground tools are Made in USA to close tolerances, giving tool & die shops and inspection departments dependable, repeatable angle accuracy.The range spans sine plates from 6" × 6" through 12" × 24" with tolerances to 0.0005, plus sine bars and a full selection of metric SP and SB series models. Use the filters to match size and center length to your setup, or contact Suburban Tool for compound sine plates and special configurations.

Electromagnetic sine plates from Suburban Tool combine accurate angle setting with fast magnetic workholding for surface grinding, layout, and inspection. The magnetic face secures the workpiece while the sine mechanism sets precise compound and single angles, making these plates ideal for tool & die shops and precision grinding departments. They are Made in USA to exacting tolerances.The range covers a broad selection of sizes from 10" × 15" through 12" × 30" and larger, in both longitudinal and transverse pole configurations (EMCB and ESP series). Use the filters to match plate size and pole orientation to your grinder, or contact Suburban Tool for special sizes and second-operation setups.

Suburban Tool Compound Sine Plates | Dual-Axis Precision for Complex Angle Setups Suburban Tool’s compound sine plates are designed for high-precision dual-angle setups in grinding, machining, and inspection environments. Constructed from hardened steel (Rc 58-60), these plates offer excellent strength, durability, and long-term accuracy under demanding use. Perfect for compound angle applications, these sine plates feature gage block rolls on both axes, each with two 0.200" minute steps, enabling precise angle setting using standard gage block sets. Built-in dual locking straps stay flush below the top surface for full access, and each model includes two hardened & ground side rails for stability and repeatable setups. Sine plates up to 6" x 6" come with 1/4-20 tapped holes, while larger models are equipped with 3/8-16 tapped holes for flexible fixturing. As part of the SineSet® System, these compound sine plates are fully compatible with other Suburban Tool components bearing the same S0, S1, or S2 suffixes—allowing you to create a modular, bolt-together precision setup that saves time and ensures alignment. Key Features: Made of hardened steel (Rc 58–60) for lasting accuracy Compound design enables dual-axis angle setups Gage block rolls with 0.200" minute steps for small angle settings Flush-mount dual locking straps for clear top access Includes two hardened & ground rails for added stability SineSet® compatible – bolt directly to matching modular components 1/4-20 tapped holes (≤6"x6") and 3/8-16 tapped holes for larger sizes

Magnetic sine plates from Suburban Tool combine a permanent magnetic chuck with a sine bar base, holding work at precise, gage-block-set angles for surface grinding, inspection, and layout. Made in USA, they give tool & die shops secure workholding and repeatable angular accuracy in one fixture.The range covers sizes from 12" x 6" up to 12" x 24" and 18" x 12", including standard and fine-pole (FP) models such as the MSP-1212-S2 and MSP-2412-FP-S2. Use the filters to select by size and pole style, or contact us for custom sine plate requirements.

Complete SineSets from Suburban Tool bundle everything needed to set and check precise angles at the surface plate or grinder. Each SineSet pairs a precision sine plate with the gage blocks, rolls, and accessories required to dial in exact setups, making them a workhorse for machinists, tool & die makers, and QC/inspection teams. Made in USA.Whether you are grinding on a taper, checking a part in inspection, or learning how to use a sine plate, these matched sets deliver repeatable accuracy right out of the box. Pair them with a sine plate calculator or sine bar calculator to nail every angle. Matched sine plate and accessory sets ready to work For precision grinding, layout, and inspection Repeatable, calculator-driven angle setups Made in USA precision by Suburban Tool Videos SineSet - The Complete System of Bolt-Together Tools explained by Don Bailey How to Set a Sine Plate or Sine Bar Sine Plate Comparison - Suburban vs EX-CELL-O vs Taft-Peirce Free Online Calculator for setting a Sine Plate or Sine Bar from Suburban Tool

Suburban Tool Sine Bars are precision angle-setting tools for machinists, tool & die makers and inspectors who need to establish and check accurate angles. Available with 5" and 10" center distances, plus metric options, each sine bar works with gauge blocks and a sine bar calculator to set precise angles for grinding, layout and QC inspection.Made in the USA, these hardened and precision-ground sine bars deliver the accuracy shops rely on. If you know how to use a sine bar, you know why Suburban Tool is a trusted source for angle checking and setting tools built for the surface plate and grinding room. Sine bars with 5" and 10" center distances Inch and metric models for precise angle setting Use with gauge blocks and a sine bar calculator Made in the USA by Suburban Tool