Drill Speeds & Feeds Chart, Machinist Shop Poster (Instant Download)

Stop burning up bits. Look up the RPM instead of guessing at the drill press.

The RPM is already calculated for you - eleven drill diameters across seven surface speeds, so you find your material's SFM, follow the column to your drill size, and read the spindle speed straight off the chart.

ON THE CHART
- RPM table, 1/16" to 1", at 30 through 250 SFM
- Surface speed by material: aluminum, brass, cast iron, 1018, 1045, 4140, tool steel, 304/316, 410/416, titanium, plastics
- Feed per revolution by drill diameter, with peck depth guidance
- Point geometry: 118 standard, 135 split, 90 blunt, 140 split, 60 spotting - what each is for
- Tapping speeds as a percentage of drill speed

Formula printed on the chart: RPM = (SFM x 3.82) / diameter in inches.

WHAT YOU GET
- 8.5 x 11 PDF - print at home, binder or sheet protector
- 18 x 24 PDF - shop wall poster, prints at any print shop
- High resolution, print ready, no watermark

INSTANT DOWNLOAD. Files are yours the second payment clears. Nothing ships.

PERSONAL AND SHOP USE - print as many copies as you want for your own shop,
truck or classroom. Do not resell or redistribute.

Built by a working metal fabricator, not a stock art seller. Every number
traced to a published standard or manufacturer data.

All 15 charts as a bundle saves $55 - see the shop.