The Whitehill Window Cill Block is an essential tool for joiners manufacturing windows - The 100 x 150mm diameter sill block with an option of moulding a corner radius in the one pass.
The block is made from high grade aluminium to keep the weight and the inertia to a minimum. Fitted with cutting spurs at the top and bottom, cutting knives in two of the slots and the option of radius cutters and limiters in the other two. All four slots are grooved for additional security. 4,6 or 8mm radius cutters and limiters are available separately.