Annular Cutter Set 13 pcs JESTUOUS 3/4 Inch Weldon Shank 1 Cutting Depth and Cutting Diameter from 7/16 to 1-1/16 for Mag Drill Press HSS Standard Kit Two Flat with 2 Pilot Pins

Specification:

Items:HSS standard weldon annular cutter set

Includes: 11 HSS annular cutters; 2 pilot pins & 1 carrying case

Cutting Diameter:7/16",1/2",9/16",11/16",5/8",3/4",13/16",7/8",15/16",1",1-1/16"

Cutting Depth: 1-1/5"

Shank Diameter: 3/4"

Shank Style: Weldon Flat

Number of Flats: 2

Accessories: 2 pilot pins(4.74x77mm,6.35x77mm)

Material:High Speed Steel（HSS）

Color:Silver

Fits: Core hole drilling fields such as engineering,rail transit, bridges,ships, machinery manufacturing, aerospace,mild & structural steel,aluminum,stainlesssteel (lower BHN)and cuts only a groove at the periphery of the hole and leavesa solid core or slug at the center.

Application:

1.Requirement to cutting rotate speed of annular cutter are also different fordifferent diameters,and reasonable cutting rotate speed will prolong servicelife of annular cutter directly,So we recommend:1.The cuttingspeed:VC=20-25m/min 2.The reasonable rotate feed amount shall befn=0.08-0.13mm/r 3.The reasonable feed rate shall be vf=36-60mm/min

2. "Weldon shank" annular cutters have 2 flats andfix in the chuck by tightening Grub screws in the two flat areas.

3. Insert the ejector pin inside the annular cutter,neveruse an annular cutter without an ejector pin.Fill the coolant tank with BDSlubricant,never use the machine without lubricant.

Tips:

1.     Remember to protect yourself, especially eyeswhen working with it.

2.     We also have 6pcs annular cutter set (ASIN:B07B2TQCJY)andsingle annular cutter, if you need, just search on our shop,many sizes can be chosen.