Feature●For drilling shiitake cultivation (for koma)●Size D: 0.4 inches (9.2 mm), Total Length: 3.0 inches (76 mm), Groove Length: 1.2 inches (31 mm), Chuck Diameter: D: Hexagonal Shaft 0.25 inches (6.35 mm)●Compatible models: Electric drill, Impact driver (9.6 V or above), Drill driver (9.6 V or above)●How to choose the size of the cone: Please use the size that fits the seeds. Bacteria (agricultural bacteria) 0.3 inches (8.0 mm) Akiyama Bacteria 0.3 inches (8.5 mm) Fuji 0.3 inches (8.7 mm) Mori Bacteria 0.4 inches (9.2 mm)●How to Plant Good Bacteria: Plant a 0.3 - 0.3 inch (7 - 8 mm) space deep into the hole. Promotes bacterial growthDescription
Can be used with rechargeable electric tools, so you can drill holes even in places without a power supply. ● With a stopper function, you can drill holes in the same depth for improved work efficiency. When working with an impact screwdriver, you can put it on and take it off with one touch.