What sizes do reamers come in?

Dowel Pin Sizes

Machine Reaming
To 3/32″ .003″- .006″
3/32″ to 1/4″ .008″- .010″
1/4″ to 1/2″ .012″- .015″
1/2″ to 1″ .017″- .020″

What size is #40 reamer?


RMR-38 #38 3.5000
RMR-39 #39 3.5000
RMR-40 #40 3.5000
RMR-3/32 3/32″ 3.5000

What is H7 reamer?

HSS Machine Reamers – Metric (H7) HSS Metric Machine Reamers. Machine reamers (otherwise known as chucking reamers) are designed to be held in the chuck of a machine such as a drilling or milling machine or a lathe and used under power to enlarge an undersized drilled hole to an accurate finished size.

What size is a #10 reamer?

YANKEE Taper Pin Reamer: For #10 Pin Size, 9/16 in Small End Dia., 23/32 in Large End Dia.

Do you run a reamer fast or slow?

Quick Summary: Some approximate starting advice is to set the spindle speed between 700-1000 rpms for steel, above 2000 for aluminum, and slow down from there if you get discolored chips or heavy drill bit wear.

What does H8 mean on a reamer?

The smaller the IT number, the more precise the hole diameter. Cutting-tool manufacturers often use H8, H7, etc. interchangeably with IT8, IT7, etc., to describe the precision of drilled holes.

What is the drill size for a 3/8 reamer?

Pre Ream Drill for 2% Ream

Reamer Diameter Drill for 2% Ream Decimal Equivalent
3/8 (0.3750) 9.25MM 0.3675
23/64 (0.3594) S 0.3522
11/32 (0.3438) 8.5MM 0.3370
21/64 (0.3281) 8.1MM 0.3215

What is the size of drilled hole for reaming 10mm?

Reamer to Hole Size Chart

FINAL HOLE REAMER SIZE Reduce Drill Hole Size By (inch)
mm inch MAX
10.00mm .39370″ -0.00787″
15.00mm .59055″ -0.01575″
20.00mm .78740″ -0.01575″