The Wera Kraftform Kompakt 900 Set contains 1 hand impact screwdriver and 18 extra long, 1/4" drive hard bits. The 921 Kraftform Plus impact driver combines the advantages of hand impact drivers, compact tools and screwdrivers with a continuous blade. The hand impact driver function can be switched on to loosen even stubborn screws When the impact function is activated, it is converted into a rotating movement with a loosening torque of up to 25 Nm. The force is transmitted through a continuous blade "bits for different screw profiles. The continuous blade ensures loss-free power transmission. When the impact function is off, the key assist on the bit holder can be operated with a 13-gauge open end wrench for greater power transfer. The system of replaceable blades means low weight, small space requirements and a high degree of flexibility for the user. Extra strong bits are characterized by a particularly long service life, premature breakage can be prevented. The hexagon socket has the Wera Hex-Plus profile. Hex-Plus provides a longer life for hex screws. It provides a larger contact surface in the screw head, so the notch effect is reduced to a minimum and the profile is prevented from being damaged. At the same time, up to 20% higher torques can be transmitted. Hex-Plus tools fit any standard hex head screw. With the help of the Velcro tape, the tool kit can be easily attached, e.g. for the wall, shelf, workshop trolley and the Wera 2go tool transport system.

Bit heads
- PH 3 pieces: PH 1 / PH 2 / PH 3
- PZ 3 pieces: PZ 1 / PZ 2 / PZ 3
- 3-edged: 0.8 x 4 mm / 1.0 x 5.5 mm / 1.2 x 6.5 mm
- TORX 5 pieces: T 15 / T 20 / T 25 / T 30 / T 40
- Inner hexagon 4 pcs: 3mm / 4mm / 5mm / 6mm