drill bits & sets
h4812kq drill bushing h drill size 7 16 in
drill bushing bushing type head press fit h inside dia . 7 16 in outside dia . 3 4 in inside dia . tolerance .0001 .0005 in outside dia . tolerance 0.0018 0.0015 in concentricity tolerance .0003 in t.i.r. max overall length 3 4 in material 52100 thru hardened finish steel drill size 7 16 in hardness rc 62 64 br b features b ul li hardness rc 62 64 li li material 52100 thru hardened li li concentricity tolerance .0003 t.i.r. max li li bushing type head press fit li li inside dia . 7 16 li li drill size 7 16 li li overall length 3 4 li li item drill bushing li li inside dia . tolerance .0001 .0005 li li finish steel li li outside dia . 3 4 li li outside dia . tolerance 0.0018 0.0015 li ul