Imperial 82598 Aircraft Extension Bit, 7/16" Nuts & Washers Star drive offers twice the

Star drive offers twice the torque over Phillips or square drive screws

May also be used on other materials-including thin wood

Dual-action formula works two ways: kills existing weeds and grasses to the roots and prevents any new weeds and grasses from growing for up to 4 months

Treaded arbor

Imperial 82598 Aircraft Extension Bit, 7/16" Nuts & Washers Star drive offers twice theAircraft extension bits are used for drilling holes in hard to reach places because of their 12" length. The 135 degree split point eliminates the need for center punching. This drill bit will not "wander," not even on curved surfaces. Highlights: Size: 7 16" Jobber length flutes Decimal Equivalent: 0. 4375 Shanks are spring tempered to prevent bending National Aerospace Standard 907 type B, type A243 specifications Warning: This product contains