Cobalt Steel Drill Bit, .5-In. Housewares Engineered with Upper and lower

Engineered with Upper and lower ball bearings

Rot or Lose Rebound Qualities

This product answers the needs of most growing applications

Uses a medium-oil conditioning blend to seal in moisture and prevent dry

It has a mild organic fertilizer charge that creates a biologically diverse environment ideal for germinating seeds and root cuttings

Cobalt Steel Drill Bit, .5-In. Housewares Engineered with Upper and lower135 degree split point to minimize walk. Cobalt for higher heat & abrasion resistance. Heavy duty web construction for strength & durability. For tough metal drilling, including heavy duty abrasive, alloy metal drilling on hardened steel.