Universal bit holder for PrecisionBits C 6.3 or E 6.3 (1/4″) according to DIN ISO 1173 robust bit holder ensuring a secure fit of PrecisionBits in cordless screwdrivers or drills. Bit holder with holding ring, versatile use special alloy based on spring steel, hard and tough for long service life laser-marked serial number, lifetime guaranteeメーカー公称