hollow skewer 19x121x16 (12.2) TG R & AMP; hardened to RC45-48 such as hollow alloy spikes, with the addition of a carbon tip for an even longer useful life. The advantage of using carbide tip spikes is the ability to maintain the maximum aeration depth consistently during the life of the spikes. You can expect these spikes to last 6 to 8 times more than the standard hollow spikes of R & Amp; r. Carbon tip spikes are not recommended in rocky soil conditions, since carbon that is extremely resistant to wear, can break when strong impacts with rocks are faced.
https://nimerparts.com/R201512R201512R201512 - Hollow skewer 19x121x16 (12.2) TG hollow skewer 19x121x16 (12.2) TG R & AMP; hardened to RC45-48 such as hollow alloy spikes, with the addition of a carbon tip for an even longer useful life. The advantage of using carbide tip spikes is the ability to maintain the maximum aeration depth consistently during the life of the spikes. You can expect these spikes to last 6 to 8 times more than the standard hollow spikes of R & Amp; r. Carbon tip spikes are not recommended in rocky soil conditions, since carbon that is extremely resistant to wear, can break when strong impacts with rocks are faced.