M14 Forum

tonyben

If it works, it works. The drill bits make short work of thick buildup but if a brush and solvent does the job, go for it. I use the brushes after the drill bits for the fine cleaning.

Aimhigh91

Tonyben, thanks for the feedback. Maybe one day when I have the time and money to throw more lead down range I'll get the drill bits. HAGO.

Gus Fisher

We always used the drill bits we could get through the Federal Supply System, so the angle of the point was not specially selected for possibly doing less cutting damage. As long as you turn the drill bits by hand, you are not going to dig/cut into the metal too much.

"Back in the day" when M14's were issued as the standard Infantry Rifle, one cleaned the large hole n the piston with bore solvent and a bore brush. Many folks never realized there even WAS a smaller diameter hole that went back into the tail of the piston. Even at the 3rd Echelon Infantry Weapons Repair Shop, we did not have the drill bits. I first learned of them when I was going through my OJT to become an RTE Repairman.

The large hole is difficult to clean properly with a brush, but the smaller rear hole is even more difficult to downright frustratingly hard without the drill bits.

The guys at Rock Island who build the EBR's issue a really great combo tool with them that has the drill bits right on the tool. I really wish we had something like those tools back when the M14 was the standard infantry rifle.

Vos Parate

I'm having trouble doing a search for these drill bits. Can anyone provide a link to the actual bits on a site such as MSC Industrial Supply?

tonyben

http://www.mcmaster.com/#metalworkin...l-bits/=f0wpqc

Vos Parate

Thanks, Tony.

There are over 8000 bits. I can't drill it down to the three needed for the M14. Anyone have the actual product link?

Sunby

Thanks for the great reference material.

FYI : Accuracy Speaks carries Gas Piston Drill.

tonyben

Click the link and toward the top of the page, right under the picture of the single drill bit and the set of drill bits, there is a drop-down menu that says "Select Letter Drill Size" and "Select Wire Gauge Drill Size" and when you select the size, it will ask you what length.

Tony.