Each set contains the three most commonly used taps: .255-28 (+.005), .260-28 (+.010), .265-28 (+.015), over size 1/4-28 taps.
These are thread reforming taps. Use these taps, in sequence, to clean up a 1/4-28 thread. Install one of our matching oversize nipples. Never use a standard nipple in an oversize hole! Never use these taps to thread a new hole. Stop when threads are fully restored. Don't enlarge nipple seats unnecessarily.
Sturdy hardened steel. Use a tap handle. Use tapping fluid. Properly used, these should last a lifetime. They can be carelessly damaged, chipped, broken, and dulled. Not warranted against failure. Repairs are best performed by skilled gunsmiths, experienced machinists, or serious hobbyists.
These are thread reforming taps. Use these taps, in sequence, to clean up a 1/4-28 thread. Install one of our matching oversize nipples. Never use a standard nipple in an oversize hole! Never use these taps to thread a new hole. Stop when threads are fully restored. Don't enlarge nipple seats unnecessarily.
Sturdy hardened steel. Use a tap handle. Use tapping fluid. Properly used, these should last a lifetime. They can be carelessly damaged, chipped, broken, and dulled. Not warranted against failure. Repairs are best performed by skilled gunsmiths, experienced machinists, or serious hobbyists.
ROS-05-I
Oversize threaded nipple: .255-28, 1/4-28 with ~.005" oversize thread~ No. 11 CCI cap, hardened steel, square shank, ideal for restoration
ROS-05-S
Oversize threaded nipple: .255-28, 1/4-28 with ~.005" oversize thread~ No. 11 CCI cap, stainless steel
ROS-10-I
Oversize threaded nipple: .260-28, 1/4-28 with ~.010" oversize thread~ No. 11 CCI cap, hardened steel, square shank, ideal for restoration
ROS-10-S
Oversize threaded nipple: .260-28, 1/4-28 with ~.010" oversize thread~ No. 11 CCI cap, stainless steel
ROS-15-I
Oversize threaded nipple: .265-28, 1/4-28 with ~.015" oversize thread~ No. 11 CCI cap, hardened steel, square shank, ideal for restoration
ROS-15-S
Oversize threaded nipple: .265-28, 1/4-28 with ~.015" oversize thread~ No. 11 CCI cap, stainless steel
TAP-W-14
Tap handle, accepts 1/4" to 1/2" diameter taps
TOOL-TAP-05
.255-28 Reforming Thread Tap,
+.005" oversize,
for 1/4-28 threads,
single tap, best used in sequence
TOOL-TAP-10
.260-28 Reforming Thread Tap,
+.010" oversize,
for 1/4-28 threads,
single tap, best used in sequence
TOOL-TAP-15
.265-28 Reforming Thread Tap,
+.015" oversize,
for 1/4-28 threads,
single tap, best used in sequence