Slip-Fixed Renewable Bushings (Type SF) — Dimensions

This reference lists standard sizes for slip-fixed type renewable bushings used with liners. Dimensions are in inches and include body diameter (B), body length (C), head diameter (E), head thickness (F), and minimum radius (D). Use the chart to select the correct SF part number.

Renewable bushings to guide the tool are for use in liners. They are used where the bushings will wear out or become obsolete before the jig or where several bushings are to be interchangeable in one hole. They are usually made with a knurled head to facilitate removal. There are “fixed” and “slip” milled notches combined on the head of renewable bushings. There is one type of renewable bushing: slip-fixed renewable. (a) The fixed side of the renewable bushing is used with the intention of leaving it in place until worn out. (b) The slip side of the renewable bushing is used with the intention of changing it frequently in a given size of liner.

Slip-fixed type renewable bushing (SF) with labeled dimensions A–F
Slip-fixed type renewable bushing (Type SF)

All dimensions are given in inches.

Slip-fixed renewable bushing dimensions (inches)
Range of
Hole
Diameters
A 		Body Diameter B Body
Length
+/- 1/64
C 		Radius
Min.
D  		Head
Diameter
+/- 1/64
E 		Head
Thickness
+/- 1/64
F 		Number
Nominal Max. Min.
#80
to
 1/16		 3/16 0.1875 0.1873 1/4 1/32 5/16 3/16 SF-12-4
5/16 SF-12-5
3/8 SF-12-6
1/2 SF-12-8
1/16
 to
#10		 5/16 0.3125 0.3123 5/16 3/64 35/64 1/4 SF-20-5
3/8 SF-20-6
1/2 SF-20-8
3/4 SF-20-12
1 SF-20-16

FAQs

A slip-fixed bushing can be left fixed or slipped out frequently depending on use, paired with liners for longevity.
Match your hole diameter range (A) and required body/head specs (B–F) in the table to the SF code.