Jiffy-Tap

#4 Chuck & Bushings:


Benefits of #4 Chuck - Quick Change Bushings
  • To change a tap bushing you don’t need any type of wrenches or keys. Just push back on the knurled section of the chuck and the tap bushing pops out.
  • To install a new bushing, align the square driver in the back of the bushing flange with the cut out in the top of the chuck and push. The knurled part of the chuck will pop forward and lock the bushing in place.
  • To change a tap in a bushing, you don’t have to remove the bushing from the chuck. Just push back the small bushing flange and the tap will come out. Insert a new sharp tap and push tap in. The bushing flange will pop back in place, securing the new sharp tap.
  • All tap changes can be accomplished in under a minute.
  • Can utilize existing quick change bushing manufactured by, Bilz, T.M. Smith, etc.
Note: Change lead screws when changing tap pitches.

The following table shows the standard bushing sizes that fit the #4 Chuck. When ordering bushings please use the part numbers listed (ex. QB-516)

Adapter Bushings to Fit No. 4 Chuck

Part
No.

Adapter Bushing I.D.

For
Tap Size

  

Part
No.

Adapter Bushing I.D.

For
Tap Size

QB-006
QB-008
QB-010
QB-012
QB-140
QB-516
QB-380
QB-716
QB-120
QB-916
QB-580

0.141
0.168
0.194
0.220
0.255
0.318
0.381
0.323
0.367
0.429
0.480

0 to No.6
No. 7 & 8
No. 9 & 10
No.12
1/4"
5/16"
3/8"
7/16"
1/2"
9/16"
5/8"

  

QB-1116
QB-340
QB-1316
QB-780
QPB-116
QPB-180
QPB-140
QPB-380
QPB-120

0.542
0.590
0.652
0.697
0.3125
0.4375
0.5625
0.700
0.6875

11/16"
3/4"
13/16"
7/8"
1/16" NPT
1/8" NPT
1/4" NPT
3/8" NPT
1/2" NPT