Sage-Tips

Who invented drill bits?

The twist drill bit was invented by Steven A. Morse of East Bridgewater, Massachusetts in 1861. The original method of manufacture was to cut two grooves in opposite sides of a round bar, then to twist the bar (giving the tool its name) to produce the helical flutes.

When were drill bit invented?

35,000 BC
The first drill bit was invented long before the first drill. Experts have dated drill bits back to prehistoric times and believe that homo sapiens were using these tools as early as 35,000 BC.

Why is it called a drill bit?

Enlarging holes The existing hole may be the result of a core from a casting or a stamped (punched) hole. The name comes from its first use, for drilling out the hole left by a foundry core, a cylinder placed in a mould for a casting that leaves an irregular hole in the product. This core drill bit is solid.

How did they drill holes before drills?

Drilling Holes An alternative primitive method was the “hand drill” or “shaft drill”, where a stick was rotated between the palms. Abrasives such as sand could be used simultaneously to make this drilling method more effective.

What was the first drill bit?

In 1906 he began experimenting with the idea of a bit consisting of two toothy, rotating steel cones that would pulverize the rock. He first tested his bit at Goose Creek in 1908, patented it in 1909, and immediately quit the drilling business and started the Sharp-Hughes Tool Company.

How many types of drill bits are there?

Drill bits are generally classified as Twist Drill, Counterbore, Countersink, Flat Bottom Boring, and Specialty. On our web site we have divided these into two categories: Drill Bits – Normally used with hand held drills or drill presses fitted with standard chucks.

Who invented hand drills?

Virtually all of today’s electric drills descend from the original portable hand-held drill patented in 1917 by S. Duncan Black and Alonzo Decker, whose invention spurred the growth of the modern power tool industry.

What is the land of a drill bit?

Land — The outer portion of the body between two adjacent flutes. Lip Relief Angle — The relief angle at the outer corner of the lip. Margin — The narrow portion of the land which is not cut away to provide clearance. It stabilizes the drill in the hole.

What was the first drill used for?

The original purpose of a drill was to make a hole in stone, metal, or wood. That use has not changed significantly over the years, but its use has expanded. There are a number of types of drills, such as the bore drill, which simply drills a hole.

When did the drill become cordless?

1961
In 1932 came the breaker hammer,1961 brought the first cordless drill, 2004 brushless motors on a power tool and 2005 the introduction of lithium ion batteries!

What are drill bits called?

Who invented the first ever power tool?

In 1895, 16 years after Thomas Edison invented the incandescent electric lamp, the German engineering company C&E Fein combined the power of an electric motor with a manual drill to develop the world’s very first power tool.

Who invented the first router?

The first multiprotocol routers were independently created by staff researchers at MIT and Stanford in 1981; the Stanford router was done by William Yeager, and the MIT one by Noel Chiappa; both were also based on PDP-11s.

Who invented the modern can opener?

The modern can opener, with a cutting wheel that rolls around the rim, was invented by William Lyman of the United States in 1870. The only change from the original patent was the introduction of a serrated rotation wheel by the Star Can Company of San Francisco in 1925.

Who invented ratchet screwdriver?

Rolgear is a family owned company in British Columbia, Canada that manufactures. and produces a full line of ratcheting screwdrivers. The Swiss founder, Robert Suter, invented the patented technology of his roller type ratchet.