IDEAL® Nutdriver Set, Hollow Shank, Measurement System: Imperial, 2 Piece, 1/4 to 5/16 in Size, 10-1/4 in Overall Length, Polished Chrome/Nickel Plated, For Use With: Pan-Way™ T-70 Series Non-Metallic Multi Channel Surface Raceway, Specifications: 5-15/16 in L Shank, 4-5/16 in Handle, Off-White, 14 in L x 5 in W x 2 in H Dimensions,