Stanley 20-600 Clamping Mitre Box Saw. Uniquely diesigned honeycomb base and cam shaped pins secure work for accurate cuts - Hassle free - just twist cam pins to securely hold material to base while cutting - Cuts miters on 45 deg. and 90 deg. - face angle 45 deg. - and all new 22-1/2 deg. angle (for octagonal shapes) popularly used on architectural details such as bay windows