Draper drill grinding attachment draper 44351 used in conjunction with a standard bench grinder the attachment gives fast and accurate sharpening of twist drills from 3mm 19mm or 1 8 3 4 diameters the diecast body has pre set notches at 41 176 countersink 49 176 59 176 68 176 and 88 176 which cover most tip angle requirements display carton draper 44351 drill grinding attachment