Thread Gauge Manufacturers and Thread Grinding Specialists
Thread Gauge Manufacturers and Thread Grinding Specialists

Capacity List

API Reference Master Gauges

Spec 7-2

2 3/8″ to 8 5/8″ REG rotary 

2 3/8″ to 5 1/2″ internal flush rotary

3 1/2″ to 6 5/8″ full hole rotary

NC 56 rotary

NC 61 rotary

Spec 5B

4 1/2″ to 13 3/8″ buttress casing

4 1/2″ to 13 3/8″ round casing

2 3/8″ to 4 1/2″ external upset tubing 

2 3/8″ to 4 1/2″ non upset tubing

1/8″ to 4″ line pipe

CNC Machinery

CNC lathes and VMC suitable 

End Thread Grinders

Matrix 3 OFF

Surface Grinders

Jones & Shipman 5 OFF

Schmatz 1 OFF

Thread Grinders

Matrix 42 3 OFF

Matrix 24 4 OFF

Matrix 16 7 OFF

Matrix 46 1 OFF

Matrix 37 2 OFF

Matrix 39 4 OFF

Universal Grinders

Ribon 1 OFF
Jones & Shipman 2 OFF

Churchill 1 OFF
Myford external 3 OFF

Myford internal 2 OFF

Conventional Tool Room Machinery

Elga Miller 1 OFF

UKAS Laboratory Inspection Equipment

• SIP F1A thread measuring machine
• Matrix hob flank angle testing machine
• Matrix internal diameter measuring machine
• Carl zeiss jena universal horizontal metro-scope
• Matrix type t.s. universal pitch measuring machine
• Sigma scope 500 (batty shadow master)
• Sigma comparator
• Sylvac digital height gauge
• Rockwell ‘C’ hardness tester

Various ancillary equipment i.e grade ‘O’ gauge blocks, micrometers etc.