Deep Hole Gundrilling: Our specially designed gundrill machine enables us to drill hole depths up to 75 inches thru, with drill sizes ranging from .250" diameter up to 1.156" diameter. The machine is custom designed with a unique built-in tapping head which allows tapping without changing machines or setups. Our in stock tap sizes range from 1/16" NPT to 1" NPT covering all required fittings and pipe plugs. This all-in-one system enables maximum efficiency and produces the highest quality, lowest cost gundrilled plates.

Water cooled molds are the key when it comes to improving cycle speeds, and gundrilling is a means of adding temperature controlled water to a tooling package without significantly increasing the tooling cost.

With these in-house capabilities, we can be your single source provider for Bolster Plates, Clamp Plates, Cooling Plates, Heater Plates, Manifolds, Master Mold Bases, Pressure Boxes, Stripper Plates and state-of-the-art Water Cooled Molds.
Copyright 2018 J&R Plastics, Inc. All rights reserved.

Independently owned and operated.
Proudly made in the USA
Bolster Plates

Clamp Plates

Cooling Plates
Heater Plates
Tapping Head
Pressure Boxes
Stripper Plates
In Stock
( dia.)