Horotec Swiss made screwdrivers have aluminum handles with oversized heads. Small ball bearings gives a smooth and commfortable rotations. All the screwdrivers in this set are with straight blades. This is a great set to work on watches, jewelry, and electronics. Horotec screwdrivers are built to strict specifications with high standards. All blades are tempered. This high quality series features color coded anodized aluminum handles with a knurled grip, swivel hex heads, and replaceable screwdriver blades.