We design, manufacture and market Special Aircraft Tools. Our most popular items are our Drill Bushing Sets.
We manufacture different types of drill bushings – 3 types. All bushings are machined to a tolerance of ± 0.001”, from O-1 Tool Steel. They are then heat treated and tempered. The respective bushing size is laser engraved on the head of the bushing. A tray is supplied with each set. The tray is machined from 6061-T6 aluminum and anodized a red color. The bushing sizes is engraved on the tray adjacent to the respective bushing location.
Our Most Popular Set
Firstly, our most popular set is the 27 Piece OD Drill Bushing Set (Transfer Bushing). The outside diameter of these bushings has been chosen to accommodate fastener holes for standard, oversize and under sized aircraft fasteners. We also produce an 8 Piece OD Drill Bushing Set (Transfer Bushing) to accommodate just the standard size aircraft fasteners.
Interfaces with Drill Bushing Block
The second of the 3 types, we produce a 16 Piece ID Drill Bushing Set (Slip Fit). The bushings are machined to a OD of 0.500”. The ID (pilot hole) through the bushing varies. The pilot bores size of each bushing has been selected and machined to guide drills to produce standard, oversize and undersized aircraft fastener holes. We also produce a 5 Piece ID Drill Bushing Set (Slip Fit) for just the standard aircraft fastener holes. The Drill Bushings of this type have been designed to interface with our Drill Bushing Block.
Interfaces with Drill Egg Cup
Lastly, we produce a 16 Piece ID Threaded Drill Bushing Set. The ID sizes are identical to the “Slip Fit” bushings noted in item 2 above. However, the OD of these bushings is a ½” 13 TPI NC thread. These bushings have been designed to interface to our Threaded Drill Egg Cup. Again, we can supply this bushing in a set of 5 Pieces for the standard fastener sizes.
We can also sell bushings individually to replace missing or lost bushings.
Finally, we have completed a production run to produce larger Transfer Bushings. A 6-Piece set with outside diameters up to 0.7500” . Also include is a 0.7850” diameter transfer bushing. This size is purpose designed and intended to be used during the installation of Brownline seat/cargo track. This set is now available.
For more detailed information visit our ON-LINE STORE at: