high speed twist drill

How mill the drill to be fast and durable

01/14/2016 langfeng high speed twist drill

►I’d like to mention a few reference, you can reference manual the name of a specific individual parts and grinding method . 1. Shorter the horizontal edge repair, but you can’ t repair gone. Because feed force will [Read More]

Hss twist drill sharpening(2)

01/13/2016 langfeng high speed twist drill

4, bit of edge to bobbing up and down, bit the tail can’t case become warped. This is a standard drill grinding movement, the main cutting edge on the grinding wheel is to bobbing up and down, that [Read More]

Hss twist drill sharpening（1)

01/13/2016 langfeng high speed twist drill

►Twist drill is a kind of common drilling tool, the structure is simple, but, it is not an easy thing to make a real good grinding. The key is to master grinding methods and techniques. The problem will [Read More]

Method of drill bit wear and grinding

01/11/2016 langfeng high speed twist drill

1) the major cutting edge is placed horizontally and parallel to the outer wheel. 2) Keep the angle between the drill center line and the outer surface of the wheel &Phi ). 3) drill head with his right [Read More]

how to improve the bit processing

01/08/2016 langfeng high speed twist drill

►Langfeng tell you how to improve the drill bit processing pathway and straight groove and flat diamond drill features 1) sub-flutes Role: role play breaker, cutting force, suitable for processing copper and aluminum parts. 2) straight flute drill Role: [Read More]

Proper use of carbide drills,cermet drills

01/07/2016 langfeng high speed twist drill

►Because Carbide drills quite valuable, the proper use of the drill so the proper use of cermet drill is moist important, and is the responsibility of each practitioner’s responsibility. Proper use of carbide drills, cermet drills,tic cermet drills [Read More]

Features and grinding method of chisel

01/07/2016 langfeng high speed twist drill

1: Feature: 1.1 chisel thick 1) is not sharp, chip free, easy eccentric, fast wear 2) The guide is good, easy to control the aperture 3) For brass, suitable for processing copper, if copper processing, the workpiece easily [Read More]

changing drill bit and ensure the second hole as same with the first

01/04/2016 langfeng high speed twist drill

►changing hss twist drill bit, how to ensure that a second drill hole as the same with first drill hole in depth Specific steps 1, grinding repair hss drill bit 2, h values measured by the projector cutting [Read More]

the structure of the high speed twist drill bit

12/30/2015 langfeng high speed twist drill

2.1 spiral groove: For discharging chips and set its size, you should make the chips can be discharged smoothly, and it shall be provided with a helix angle. Its groove helix angle should vary with the type of [Read More]

The drill bit types and characteristics

12/30/2015 langfeng high speed twist drill

►The drill bit types and characteristics 1) Species 1.1 high-speed steel drill bit (ordinary drill) The main system uses high-speed steel W, Mo-based material 1.2, (alloy drill) Tungsten titanium-based (YG), tungsten, titanium cobalt (YT) material. Physical and mechanical [Read More]

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