Taper shank on drills is provided for Production Engineering Mcqs October 13, 2019 BILAL KHATTAK0 A.Drilling taper holes B.Quick intersection in spindle C.Use on tapered surfaces D.None of these Related Mcqs: Shanks of taper drills are provided standard taper known as Draft or taper allowance in patterns is provided on Standard taper generally used on milling machine spindles is A mandrel is The sprue pin/sprue hole used for sand moulds is For drills having diameter upto 12.7 mm. A diamond point chisel is used for A plug gauge is used for measuring A 12 mm drilling machine means ___________ is a pair activity in which students have a short period (typically 30 seconds) to share all they know by writing in a graphic organizer.?