Draper Drill Grinding Attachment

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Used in conjunction with a standard bench grinder, the attachment gives fast and accurate sharpening of HSS twist drills from 3mm - 19mm or 1/8 - 3/4" diameters. The diecast body h as pre - set notches at 41° (countersink), 49°, 59°, 68° and 88° which cover most tip angle requirements. Angle Overhang Usage 88° 29.5mm Hard materials, thin sheet. Helps to prevent snatching. 68° Half drill diameter Small drill for high volume production. 59° Half drill diameter General purpose drilling. 49° Drill diameter Soft materials, (plastic, wood, lead, copper, light alloy, etc.j 4 I ° As required Countersinks. Show more