Ideal for bolts this is a high quality magnetic nut driver.
Trend Compression Spiral 8Mm Diameter Pk 1 CNC/205X8STC
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Trend Snappy TCT Drill Countersinks and Depth Stop Size 12
Trend SNAP/DBG/12 Snappy 4.36mm Drill Bit Guide
Trend SNAP/CS/8TC Snappy Countersink
Trend Snappy Flip Driver Set 4 Piece Set 1 SNAP/FLIP/SET