Silverline 75mm Precision Bench Block Silverline Tools seem like they have been around since the invention of the wheel.With tested quality control that"s second to none and backed with a no quibble guarantee most people in the trade believe it"s worth paying that little extra to know what your getting.Silverline Tools, trusted in the trade.This 75mm diameter bench block is ideal support when working with small items for precision drilling.Comes with 9 drill holes ranging from 3mm - 16mm and a V groove spanning the whole length of the block.Hardened and polished steel base for maximum durabilitySpecifications 75mm base Drill holes: 3mm, 4mm, 5mm, 6mm, 8mm, 9.5mm, 11mm, 13mm and 16mm V grove down the centre for holding irregular shapes Holds small items when drilling Knurled edge for grip in oily conditionsRRP - 19.99