Sealey DHS22 Electroplated Diamond Hole Saw ø22mm

DURABLE - Electroplated diamond coated cutting edge allows precise chip-free cutting of glass, granite, marble, porcelain and ceramics.
COOLING - soaked sponge prolongs life of cutting edge by reducing heat build up.
DIVERSE - 45mm cutting depth makes this range ideal for plumbing and electrical installations.
DOMESTIC OR PROFESSIONAL - rounded hex shank means it will fit both handheld or pillar drill chucks.