DANYANG RIGHTOOLS CO.,LTD
Responsibility is the assurence of Quality , And Quality is the life of corporation.
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7pcs 14-35mm Tungsten Carbide Tipped Hole Saw Drill Bit Set Silver
Specification:
Material: Alloy Tip + HSS Body
Size: 22mm, 30mm, 35mm, 45mm, 50mm, 65mm
Color: As pictures show
Quantity: 6pcs
Note:
1. Please allow 1-3mm error due to manual measurement
2. Item color displayed in photos may be showing slightly different on your computer monitor since monitors are not calibrated same
Package Includes:
6×Hole Saws
USAGE SUGGESTION:
Hole saw may become overheated and get damaged or even burned up due to fast rotary friction,
we suggest customers to use cutting fluid to keep the hole saw cold during usage.
Keep the drill be stable when drilling, otherwise the centre bit may get snapped due to excessive shaking.
Start drilling with a slow drill rotary speed, or the centre bit may be shattered on first use.
The larger the hole saw is, the slower the drill rotary speed should be, this way can protect the centre bit from getting snapped.
Advantage:
| R.P.M TABLE | |||
| DIA(MM) | STEEL PLATE | STAINLESS | CAST IRON |
| 14-19 | 1190-800 | 1000-500 | 1790-1390 |
| 20-30 | 1160-710 | 890-440 | 1590-1240 |
| 31-40 | 960-640 | 800-400 | 1430-1110 |
| 41-50 | 870-570 | 720-360 | 1300-1010 |
| 51-60 | 760-510 | 640-320 | 1140-890 |
| 61-70 | 640-430 | 530-270 | 950-740 |
| 71-80 | 550-360 | 460-230 | 810-630 |
| 81-90 | 480-320 | 400-200 | 710-550 |
| 91-100 | 430-280 | 350-170 | 630-490 |
| 101-120 | 380-260 | 320-160 | 570-440 |
| 121-150 | 200-100 | 120-60 | 390-280 |
| OPERATING INSTRUCITONS | |
| ·Insert the hole saw into the electric drill. | |
| ·Secure the drill chuck jaws on three flats of hole saw shank. | |
| ·Begin drilling using light feed pressure until the hole saw has begun drilling. | |
| ·Apply medium feed pressure once the cutter has engaged in material. | |
| ·Do not press the hole saw strongly into the material after the pilot drill has penetrated,as this may damage the carbide tips. | |
| ·Always use rotation hand drills with no impact or with a rotation only mode. |
Package and Delivery:
1. Package:Plastic box,Blister card,etc
2. 20-30days after your deposite
3. We can provide samples for free to test before order.
Payment:
1. We can accept L/C,T/T,Western Union,Paypal,etc.
2. 20-30%T/T in advance,the balance before shipment or against copy of B/L.
