Blade edge: [[(-)]] 0.2 inches (5.5 mm); Shaft length: 4.0 inches (103 mm); Total length: 8.2 inches (208 mm); Weight: 1.6 oz (46.2 g) Penetrating type; Blade edge: Black point tip The wera black point tip offers an exact fit and optimum corrosion protection Hard gripping zones for high working speeds, soft zones for high torque transfer. Comes with a bolster that can be tightened strongly with a spanner, etc. The special grip shape makes it easy to grip and fit. A penetrating driver that can be hitten. The top of the handle has a 6.35 hex shaft slot that allows you to insert a T-handle hex wrench, etc. and tighten the book with greater force Hexagonal blade extending through the handle, impact cap with integrated square and bolster, Weight: 0.28 pounds, Manufacturer: WERA