This replacement alloy steel bushing fits our Standard Safety Wire Drilling Jig (Part No. 3747) and our Metric Safety Wire Drilling Jig (Part No. 3750-002).
The our old Deluxe Drilling Jig (Part No. 3744) has a different thread pitch and does not accept this bushing. The Deluxe jig was anodized blue and had a storage compartment for spare bits.