Trend SNAP/BH/M Magnetic Micro Bit Holder for 1/4\" Hex 25mm Insert Bits Micro bit holders with small 10.8mm diameter body and spring locator for positive securing of bit. FEATURES Micro diameter body Small 10.8mm diameter to allow access into tighter spaces Pull back ring to release bits, spring-loaded release of bit Tested to 50 Nm torque Extra strong magnet N50 (Gauss 3900-4000) to minimise bit loss due to the bits sticking to the screw Stainless steel housing SPECIFICATION Diameter: 10.8 mm For Hex Bits: 1/4-inch Overall Length: 66 mm Shank Diameter: 1/4-inch hex Gauss Measurement: 3900-4000