Kempston Hinge Mortising Bits: Two Flutes, For cutting hinges, stair treads and general routing of larger areas

Item No.       A         B           C          D

108011       1/2       1/2       1/4      1-1/4
108031       3/4       3/4       1/4      1-1/4
108411       1/2       1/2       1/2      1-1/2
108421       5/8       3/4       1/2      1-1/2
108431       3/4       3/4       1/2      1-1/2