Can You Drill Through Grade 8 Bolt at Holly Mellott blog

Can You Drill Through Grade 8 Bolt. The bolt is m8 x 55mm long. I'm drilling them 1 1/2 deep with a 3/32 dia drill, then cross drilling one side. I would only use a grade 8 if you have carbide to cut it with and then grind the flats. Cause i can't friggin spell. I have cut grade 5 bolts with both hss and high. The bolt is a production part. Can you drill through a grade 8 bolt using a regular drill bit, or do you need a special type of drill bit? If it is a real grade 8 bolt it should be made of a medium carbon (1040 or higher) or alloy steels. Grade 8's made of stainless are. I want to drill down through the head of the bolt and tap for a smaller bolt. Choose the appropriate drill bit: I need to drill a 3.2mm hole through a grade 8.8 metric bolt. It's a rare day that goes by without drilling a dozen grade 8 bolts for safety wire. Coolant is mandatory, the easiest way is using. The tap won't like it but.

I'm drilling them 1 1/2 deep with a 3/32 dia drill, then cross drilling one side. I have cut grade 5 bolts with both hss and high. Grade 8's made of stainless are. Can you drill through a grade 8 bolt using a regular drill bit, or do you need a special type of drill bit? The bolt is a production part. I'm drilling out all the 9/16 x 4 1/2 grade 8 bolts for grease nipples. The bolt is m8 x 55mm long. Cause i can't friggin spell. It's a rare day that goes by without drilling a dozen grade 8 bolts for safety wire. The tap won't like it but.

Bolt Grades [with Charts] EngineerExcel

Can You Drill Through Grade 8 Bolt I would only use a grade 8 if you have carbide to cut it with and then grind the flats. I would only use a grade 8 if you have carbide to cut it with and then grind the flats. I want to drill down through the head of the bolt and tap for a smaller bolt. Can you drill through a grade 8 bolt using a regular drill bit, or do you need a special type of drill bit? Grade 8's made of stainless are. Choose the appropriate drill bit: I need to drill a 3.2mm hole through a grade 8.8 metric bolt. I have cut grade 5 bolts with both hss and high. If it is a real grade 8 bolt it should be made of a medium carbon (1040 or higher) or alloy steels. It's a rare day that goes by without drilling a dozen grade 8 bolts for safety wire. Coolant is mandatory, the easiest way is using. The bolt is a production part. Cause i can't friggin spell. The tap won't like it but. I'm drilling out all the 9/16 x 4 1/2 grade 8 bolts for grease nipples. I'm drilling them 1 1/2 deep with a 3/32 dia drill, then cross drilling one side.