Printable Workshop Templates
Generate full-size templates for drilling, notching and marking out, including pipe notches, bolt circles, drill-hole layouts, rulers and protractors. Print at 100% and measure the calibration mark before cutting or drilling.
Choose a printable tool
Use a drill grid for rows of holes, a bolt circle for holes around a center, or Print to Scale for an existing image. Enter measured dimensions, then print at 100% and check the calibration mark before transferring the layout.
Graph Paper
Create calibrated square or dot-grid paper, draw on it locally, and export a single-sheet PDF or SVG image.
Calibrated screen ruler
Measure screen-plane lengths after physical calibration, with millimetre or sixteenth-inch ticks and zoom/resize invalidation.
How to read a ruler
Select ruler ticks and see reduced inch fractions, decimal inches and millimetres in an interactive reading guide.
Gear ratio and RPM calculator
Calculate driver/driven ratios, speed, torque and theoretical wheel speed with a phase diagram and chart.
Circle and oval template
Generate repeated circles or ellipses at physical dimensions with centre marks and tiled PDF/SVG export.
Bubble level with manual and sensor modes
Check two-axis relative tilt with opt-in device sensors, zero calibration and a manual angle fallback.
Pipe Notch Template
Generate a full-size fishmouth or saddle template for the theoretical intersection between two tubes.
Bolt Circle Template
Enter a bolt circle diameter and hole count to generate a full-size printable template with a calibration check.
Drill Hole Template
Lay out custom rows of drill holes with exact spacing and download a printable template.
Printable Ruler
Prepare a full-size metric, imperial or combination ruler and verify the printed calibration square before use.
Printable Protractor
Prepare a full-size 180° protractor and verify its printed calibration mark before use.
Drill Point Calculator
Find a drill's tip length and how deep to drill for a target full-diameter blind-hole depth.
Countersink Calculator
Solve countersink depth, major diameter, pilot diameter or included angle with a live section view.
Sine Bar Stack Calculator
Calculate sine-bar height and find a short metric gauge-block combination near the target.