Bowers Instruction Manuals

• XTA Analogue Bore Gauge
  
• XTD Digital Bore Gauge
• XTH Holematic Bore Gauge
• XTL Lever Bore Gauge
• XT500 Large Diameter Bore Gauge
• Ultima Bore Gauge
• Snapmatic
  
• UniCal Universal Digital Caliper

Trimos Instruction Manuals

• Trimos Mestra Height Gauges
• Trimos Vectra Height Gauges
• Trimos V+ Series Height Gauges

Sylvac Instruction Manuals

• Sylvac Z Cal Height Gauges
• Sylvac D100S Readouts
• Sylvac Opto Instruments

Special Application Leaflets

• Countersink Gauge measurement
• External Ball Screw measurement
• Groove measurement
• Internal Spline measurement
• Internal Thread measurement
• Universal Gauge with extra long measuring arms

Hardness Testing

• A Guide to Hardness Testing
• Hardness Conversion Table
• Hardness Scale Relationship Chart
• Rockwell Hardness Comparison Chart
• Brinell and Vickers Hardness Scale and Tensile Strength Equivalents
• Brinell Hardness, Vickers Hardness and Tensile Strength Equivalents
• Hardness Conversion Table - Rockwell C Hardness Scale (hard materials)
• Hardness Conversion Chart - Rockwell C Hardness Scales (hard materials)
• Estimated Hardness Equivalent Chart - Rockwell C and Vickers (hard materials)
• Hardness Conversion Table - Rockwell B Hardness Scale (soft metals)
• Hardness Conversion Chart - Rockwell B Hardness Scale (soft metals)
• Hardness Charts with Calculators for Hardness and Depth (.xls file)

All Hardness Testing information reproduced with kind permission of
Gordon England.