Deep Hole Drilling and Trepanning

Deep Hole Drilling and Trepanning

We specialize in deep hole machining services. Check our page on Deep Hole Boring for additional capacities.   Drilling provides a given hole size with a single machining pass. It may be through the part, or partially through (blind). We provide drilling services...
CNC and Manual Long Turning

CNC and Manual Long Turning

We have Large Diameter Manual & CNC Lathes and a complete spectrum of deep hole boring lathes. Be sure to check out our CNC Milling Capacities as well! We are familiar with tight tolerance threading and contouring operations on parts exceeding 30′ in length....
Deep Hole Boring

Deep Hole Boring

We specialize in long, deep hole boring services. We bore up to 70′ lengths. We can achieve tolerances of .002″ on diameter and surfaces finishes to 8 Ra or better. Be sure to ask about our Trepanning and Large Honing capabilities.  Grand Valley has 50...
Honing

Honing

  GVM has honing capabilities from very small, up to 30″ ID’s x 70 feet long and surface finishes to 8 RA or better. We work with many customers in the hydraulics industry and other companies requiring high quality surface finishes and close...
Milling

Milling

2 – Large CNC Gantry Mills with Head Attachment Changers and Tool Changers for 5 – Sided Machining up to 17’ Lengths 14’ Widths and 8’ Heights 7 Axis, 6” G&L CNC Horizontal Boring Mill – w/12’ x 6’ B Axis Rotary Table, 36” Vertical A-Axis Indexer & CNC  ...
Stress Relieving

Stress Relieving

GVM offers Stress relieving as part of our machining portfolio for fabricated parts or for stand-alone needs. Our Bell Type stress relieve furnace can handle 20′ L x 11.5′ W x 7.5′ H and has a 1200 Degree High Limit. With a large envelope, we can...