- Wholesale 20pc COLORLINE SCREWDRIVER - The perfect set for filling a toolbox - 1 screw holding 5/32" x 4" slotted driver - 11 slotted sizes: 1/8" x 2"; 3/16" x 1-1/2"; 5/32" x 4"; 1/4" x 4"; 3/16" x 4"; 3/16" x 8"; 1/4" x 8"; 3/16" x 6"; 3/16" x 1-3/4"; 1/4" x 12"; 3/16" x 12" - 8 phillips sizes #1 x 3"; #1 x 6"; #2 x 8"; #1 x 8"; #1 x 4"; #1 x 4"; #1 x 1-1/2"; #0 x 2-1/2" -Durable steel blades with heavy duty handles