HHIP 3600-0042 Machinists' Bench Block (Holes 1/8~5/8 Inch)
Made from steel-hardened and Ground A handy tool for holding work when driving pins, drilling, etc. The knurled side provides a good gripping surface V-groove across the face accommodates round and odd shaped stock Holes from 1/8 to 5/8 (3-16mm) diameter.