IMPACT offers a range of Foremost cushion and shock subs designed to meet the

demanding requirements of rotary drills used in a variety of applications.

These tools significantly increase the number of operating hours on

rotary head and structural components before requiring rebuild or replacement.

All models are available prepacked with a grease zerk insitu for incremental lubrication as required.

For optimal life between service intervals with standard models, the operator can choose to add 15 grams

(approximately 10 - 15 pumps of a handheld grease gun each 10 - 30 operating (rotating) hours.
With the more recently released Extended Service 400127ES and 306430ES models, operators may extend

incremental greasing to 10-15 pumps each 7-10 days or 150 – 200 operating or rotating hours.
Note: To avoid over greasing, ensure the tool is in the closed or retracted position.

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