Plug type

Drill size (inches)

Irontite

25/64

7/16

15/32

11/64

13/64

5/16

11/32

9/16

23/32

51/64

9/64

1-1/32

1-1/16

1-1/4

1-5/16

Engine Cold Crack Repair, Drill size (inches): 7/16 and 11/32

B-1/8" HSS Tapered Tap

<p><strong>HSS Tapered Reamer for Irontite Casting Crack Repair</strong> Prepares holes for D, D-1, D-1 Special ductile iron plugs, extending tap lifespan, especially when working with thick castings.</p>

Prepare holes for D, D-1, D-1 Special plugs with this HSS Tapered Reamer (407-5204-90) for Irontite casting crack repair. Extends tap life in thick metal.

D, D-1, D-1 Special HSS Tapered Reamer

B-1/8 Automotive Ductile Iron Plugs, Box of 50

B-1/8 11/32" HSS Drill Bit

Engine Cold Crack Repair; Drill size (inches): 7/16 and 11/32