Suitable for repairing damaged and worn threads, also ideal for new applications. Ideal for use with alloys and other light materials. Can also be used for converting from metric to inch and vice versa. Insert lengths are 1.5D and other lengths are available on request. Each kit supplied with inserts, HSS hand tap, insertion tool and instructions. Kits come complete with: Hand Tap, Inserting Tool and Inserts. M12,M14 and M16 in range do not include drill bit. Image For Illustration Purposes Only