Impact XPS 25mm Insert Bits & 50mm Power Bits are available in Phillips, Pozi, Square, Torx & Hex. Impact XPS Power Bits are also available in 75mm & 150mm lengths. Makita's new XPS range of screwdriver bits & holders provided with pulse torsion zone technology, is the next generation of premium fastening accessories for trade use, engineered to withstand the high torque provided by current impact drivers as well as for use in drill/ drivers & screwdrivers. The Impact XPS series is expertly engineered to the highest quality for exceptional product life, meaning less wasted time for trades due to broken bits. This helps prevent premature tip wear & the screw head from stripping. Pulse Torsion Ring & Zone - Pulse torsion rings are specially engineered to disperse impact energy through the torsion zone & direct to the bit tip. The torsion zone has been optimized to flex under load to transfer impact energy for improved bit life. The length combined with diameter of the bit, is a special formula to create an optimized torsion zone. This engineering works together for longer performance life. Unique Steel Blend - The unique carbon alloy steel composition of the XPS range is engineered for increased durability of the bits for longer life as well as minimizing premature damage of driver tip.