Select the country/region, language, and currency you prefer for shopping.

Search for "concrete bit"

Tools
Building Materials
Hardware
54 Results
Popular
Categories
Price
Under 30
30 ~ 50
50 ~ 100
100 ~ 200
200 ~ 500
500 & Above
Customer Rating
5 stars only
4 stars and up
3 stars and up
2 stars and up
1 star and up
Special Offers
On Sale
Bulk Savings
In Stock
Pickup
VEVOR Core Drill Bit, 2.5" Wet/Dry Diamond Core Drill Bits for Brick and Block, Concrete Core Drill Bit with Pilot Bit Adapter and Saw Blade, 9.5" Drilling Depth, 5/8"-11 Inner Thread, Laser Welding
(136)
34.9
34.9
Deal after registering
Member discounted price
0% cash back at checkout.
34.9
Non-PRO Account
34.9
Save
Non-PRO Account
In Stock.
VEVOR Core Drill Bit, 4.25" Wet/Dry Diamond Core Drill Bits for Brick and Block, Concrete Core Drill Bit with Pilot Bit Adapter and Saw Blade, 9.5" Drilling Depth, 5/8"-11 Inner Thread, Laser Welding
(136)
45.9
45.9
Deal after registering
Member discounted price
0% cash back at checkout.
45.9
Non-PRO Account
45.9
Save
Non-PRO Account
In Stock.
VEVOR Core Drill Bit, 4" Wet/Dry Diamond Core Drill Bits for Brick and Block, Concrete Core Drill Bit with Pilot Bit Adapter and Saw Blade, 9.5" Drilling Depth, 5/8"-11 Inner Thread, Laser Welding
(136)
44.9
44.9
Deal after registering
Member discounted price
0% cash back at checkout.
44.9
Non-PRO Account
44.9
Save
Non-PRO Account
In Stock.
VEVOR Core Drill Bit, 6 Pieces, 1/2/3/4/5/6 inch Diameter, 14 inch Drilling Depth, 1-1/4 in-7 Internal Thread, High-Precision Welding, Wet Diamond Core Bit for Reinforced Concrete, Bricks, and Masonry
(151)
198.9
198.9
Deal after registering
Member discounted price
0% cash back at checkout.
198.9
Non-PRO Account
198.9
Save
Non-PRO Account
In Stock.
VEVOR Core Drill Bit, 5 inch Diameter, 14 inch Drilling Depth, 1-1/4 in-7 Internal Thread, High-Precision Welding Technology, Wet Diamond Core Bit for Reinforced Concrete, Red Bricks, and Masonry
(151)
38.99
38.99
Deal after registering
Member discounted price
0% cash back at checkout.
38.99
Non-PRO Account
38.99
Save
Non-PRO Account
Only 3 Left, order soon
Add to Cart
VEVOR Core Drill Bit, 3-1/2 inch Diameter, 14 inch Drilling Depth, 1-1/4 in-7 Internal Thread, High-Precision Welding Technology, Wet Diamond Core Bit for Reinforced Concrete, Bricks, and Masonry
(151)
28.99
28.99
Deal after registering
Member discounted price
0% cash back at checkout.
28.99
Non-PRO Account
28.99
Save
Non-PRO Account
In Stock.
VEVOR Core Drill Bit, 4 inch Diameter, 14 inch Drilling Depth, 1-1/4 in-7 Internal Thread, High-Precision Welding Technology, Wet Diamond Core Bit for Reinforced Concrete, Red Bricks, and Masonry
(151)
32.99
32.99
Deal after registering
Member discounted price
0% cash back at checkout.
32.99
Non-PRO Account
32.99
Save
Non-PRO Account
In Stock.
VEVOR Core Drill Bit, 2-1/2 inch Diameter, 14 inch Drilling Depth, 1-1/4 in-7 Internal Thread, High-Precision Welding Technology, Wet Diamond Core Bit for Reinforced Concrete, Bricks, and Masonry
(151)
24.99
24.99
Deal after registering
Member discounted price
0% cash back at checkout.
24.99
Non-PRO Account
24.99
Save
Non-PRO Account
In Stock.
VEVOR Core Drill Bit, 8 inch Diameter, 14 inch Drilling Depth, 1-1/4 in-7 Internal Thread, High-Precision Welding Technology, Wet Diamond Core Bit for Reinforced Concrete, Red Bricks, and Masonry
(151)
68.99
68.99
Deal after registering
Member discounted price
0% cash back at checkout.
68.99
Non-PRO Account
68.99
Save
Non-PRO Account
Only 3 Left, order soon
Add to Cart
VEVOR Core Drill Bit, 4-1/4 inch Diameter, 9-1/2 inch Drilling Depth, 5/8-11 Internal Thread, Diamond Dry Coring Bit with 3 Adapters, Pilot Drill and Hex Wrench, for Concrete, Red Bricks, and Masonry
(151)
49.9
49.9
Deal after registering
Member discounted price
0% cash back at checkout.
49.9
Non-PRO Account
49.9
Save
Non-PRO Account
In Stock.
VEVOR Core Drill Bit, 4-1/2 inch Diameter, 9-1/2 inch Drilling Depth, 5/8-11 Internal Thread, Diamond Dry Coring Bit with 3 Adapters, Pilot Drill and Hex Wrench, for Concrete, Red Bricks, and Masonry
(151)
53.9
53.9
Deal after registering
Member discounted price
0% cash back at checkout.
53.9
Non-PRO Account
53.9
Save
Non-PRO Account
In Stock.
VEVOR Core Drill Bit, 3 inch Diameter, 14 inch Drilling Depth, 1-1/4 in-7 Internal Thread, High-Precision Welding Technology, Wet Diamond Core Bit for Reinforced Concrete, Red Bricks, and Masonry
(151)
26.99
26.99
Deal after registering
Member discounted price
0% cash back at checkout.
26.99
Non-PRO Account
26.99
Save
Non-PRO Account
In Stock.
VEVOR Core Drill Bit, 1-1/2 inch Diameter, 14 inch Drilling Depth, 1-1/4 in-7 Internal Thread, High-Precision Welding Technology, Wet Diamond Core Bit for Reinforced Concrete, Bricks, and Masonry
(151)
21.99
21.99
Deal after registering
Member discounted price
0% cash back at checkout.
21.99
Non-PRO Account
21.99
Save
Non-PRO Account
In Stock.
VEVOR Core Drill Bit, 4-1/2 inch Diameter, 14 inch Drilling Depth, 1-1/4 in-7 Internal Thread, High-Precision Welding Technology, Wet Diamond Core Bit for Reinforced Concrete, Bricks, and Masonry
(151)
35.99
35.99
Deal after registering
Member discounted price
0% cash back at checkout.
35.99
Non-PRO Account
35.99
Save
Non-PRO Account
In Stock.
VEVOR Core Drill Bit, 2" Wet Diamond Core Drill Bits, 14" Drilling Depth Concrete Core Drill Bit with Saw Blade, 1-1/4"-7 Inner Thread, Laser Welding, Diamond Wet Coring Bit for Concrete Brick
(136)
28.9
28.9
Deal after registering
Member discounted price
0% cash back at checkout.
28.9
Non-PRO Account
28.9
Save
Non-PRO Account
In Stock.
VEVOR Core Drill Bit, 4.25" Wet Diamond Core Drill Bits, 14" Drilling Depth Concrete Core Drill Bit with Saw Blade, 1-1/4"-7 Inner Thread, Laser Welding, Diamond Wet Coring Bit for Concrete Brick
(136)
40.9
40.9
Deal after registering
Member discounted price
0% cash back at checkout.
40.9
Non-PRO Account
40.9
Save
Non-PRO Account
In Stock.
Deals
VEVOR Core Drill Bit, 1-1/4" Wet Diamond Core Drill Bits, 14" Drilling Depth Concrete Core Drill Bit, 5/8"-11 Inner Thread, Laser Welding, Diamond Wet Coring Bit for Concrete Brick and Block
(136)
16.56
20.9
Deal after registering
Member discounted price
0% cash back at checkout.
16.56
Non-PRO Account
16.56
Save
Non-PRO Account
In Stock.
VEVOR Demolition Jack Hammer, 2200W 1400 BPM Jack Hammer Concrete Breaker, Heavy Duty Electric Jack Hammer 4pcs Chisels Bit with Gloves, 360°C Swiveling Front Handle for Trenching and Breaking Holes
(1,443)
198.9
198.9
Deal after registering
Member discounted price
0% cash back at checkout.
198.9
Non-PRO Account
198.9
Save
Non-PRO Account
Extra 8% off with coupon
In Stock.
MUST BUY
VEVOR Demolition Jack Hammer, 2200W Electric Jackhammer Heavy Duty, 1440 BPM Concrete Breaker 6pcs Chisels Bit Chipping with Case
(1,443)
225.9
225.9
Deal after registering
Member discounted price
0% cash back at checkout.
225.9
Non-PRO Account
225.9
Save
Non-PRO Account
Extra 11% off with coupon
In Stock.
VEVOR Concrete Hole Saw Kit, 1-2/11\", 1-3/5\", 2-9/16\", 3-5/32\", 3-15/16\" Drill Bit Set SDS Plus & SDS MAX Shank Wall Hole Cutter with a 4-1/3\" Connecting Rod for Concrete, Cement, Stone Wall, Ma
(109)
61.9
61.9
Deal after registering
Member discounted price
0% cash back at checkout.
61.9
Non-PRO Account
61.9
Save
Non-PRO Account
In Stock.
VEVOR Core Drill Bit, 1" Wet Diamond Core Drill Bits, 14" Drilling Depth Concrete Core Drill Bit, 5/8"-11 Inner Thread, Laser Welding, Diamond Wet Coring Bit for Concrete Brick and Block
(136)
18.9
18.9
Deal after registering
Member discounted price
0% cash back at checkout.
18.9
Non-PRO Account
18.9
Save
Non-PRO Account
In Stock.
Deals
VEVOR Demolition Jack Hammer, 2200W Electric Jackhammer Heavy Duty, 1350 BPM Concrete Breaker, 2pcs Chisels Bit Chipping with Case, Black
(1,443)
105.4
156.9
Deal after registering
Member discounted price
0% cash back at checkout.
105.4
Non-PRO Account
105.4
Save
Non-PRO Account
In Stock.
VEVOR Demolition Jack Hammer, 1350 BPM Concrete Breaker 6pcs Chisels Bit Chipping with Case, 2200W Electric Jackhammer Heavy Duty, Black
(1,443)
225.9
225.9
Deal after registering
Member discounted price
0% cash back at checkout.
225.9
Non-PRO Account
225.9
Save
Non-PRO Account
In Stock.
Deals
VEVOR Demolition Jack Hammer, 2200W Electric Jackhammer Heavy Duty, 1350 BPM Concrete Breaker, 2pcs Chisels Bit Chipping with Case
(1,443)
141.21
156.9
Deal after registering
Member discounted price
0% cash back at checkout.
141.21
Non-PRO Account
141.21
Save
Non-PRO Account
In Stock.
Deals
VEVOR Diamond Core Drilling Machine, 0.8-6.3 in Drilling Diameter, Handheld Dry and Wet Concrete Core Drill Rig with 4 Drill Bits, 0-1800RPM Variable Speed, UNC1 1/4-7, for Concrete Brick Stone, 2000W
(414)
198.81
220.9
Deal after registering
Member discounted price
0% cash back at checkout.
198.81
Non-PRO Account
198.81
Save
Non-PRO Account
In Stock.
VEVOR Diamond Core Drilling Machine, 0.8-8 in Drilling Diameter, Stand-Mount Dry and Wet Concrete Core Drill Rig with 8 Drill Bits, 800 RPM Speed, UNC1 1/4-7 Thread, for Concrete Brick Stone, 3000W
(404)
639.9
639.9
Deal after registering
Member discounted price
0% cash back at checkout.
639.9
Non-PRO Account
639.9
Save
Non-PRO Account
In Stock.
Deals
VEVOR Demolition Jack Hammer, 2200W Jack Hammer Concrete Breaker, 1350 BPM Heavy Duty Electric Jack Hammer, 4pcs Chisels Bit with Case, Black
(1,443)
179.01
198.9
Deal after registering
Member discounted price
0% cash back at checkout.
179.01
Non-PRO Account
179.01
Save
Non-PRO Account
In Stock.
Deals
VEVOR Diamond Core Drilling Machine, 8 in Drilling Diameter, Handheld Dry and Wet Concrete Core Drill Rig with 4 Drill Bits, 1075/2300 RPM 2-Speed, UNC1 1/4-7 Thread, for Concrete Brick Stone, 1800W
(414)
257.31
285.9
Deal after registering
Member discounted price
0% cash back at checkout.
257.31
Non-PRO Account
257.31
Save
Non-PRO Account
In Stock.
VEVOR Diamond Core Drilling Machine, 8 in Drilling Diameter, 2-in-1 Handheld & Stand-Mount Dry and Wet Concrete Core Drill Rig with 4 Drill Bits, 1075/2300 RPM 2-Speed, for Concrete Brick Stone, 1800W
(414)
429.9
429.9
Deal after registering
Member discounted price
0% cash back at checkout.
429.9
Non-PRO Account
429.9
Save
Non-PRO Account
In Stock.
Deals
VEVOR Demolition Jack Hammer, 1400W Electric Jackhammer Heavy Duty, 2900 BPM Concrete Breaker, 2pcs Chisels Bits Chipping with Case, Gloves
(473)
70.46
82.9
Deal after registering
Member discounted price
0% cash back at checkout.
70.46
Non-PRO Account
70.46
Save
Non-PRO Account
In Stock.
Deals
VEVOR Core Drill Machine, 0.8-6.3in Drilling Diameter Handheld Diamond Core Drill Rig with Stand and Core Drill Bit, 2000W Rugged Concrete Core Drill, Wet and Dry Use, For Concrete, Brick, Marble
(414)
179.01
198.9
Deal after registering
Member discounted price
0% cash back at checkout.
179.01
Non-PRO Account
179.01
Save
Non-PRO Account
In Stock.
Deals
VEVOR Core Drill Machine, 0.8-11.8in Drilling Diameter Diamond Core Drill Rig with Stand and Core Drill Bit, 3500W Rugged Concrete Core Drill, Wet and Dry Use, For Concrete, Brick, Marble
(404)
371.61
412.9
Deal after registering
Member discounted price
0% cash back at checkout.
371.61
Non-PRO Account
371.61
Save
Non-PRO Account
In Stock.
New
VEVOR Diamond Core Drilling Machine, 0.8-12 in Drilling Capacity, Dry/Wet Concrete Core Drill Rig with 5 in Wet Drill Bit, Tiltable Stand & Wheeled Base, 3200W 800RPM/430RPM, UNC1 1/4–7 Thread
(2)
621.99
621.99
Deal after registering
Member discounted price
0% cash back at checkout.
621.99
Non-PRO Account
621.99
Save
Non-PRO Account
In Stock.
VEVOR Demolition Jack Hammer, 2200W 1350 BPM Jack Hammer Concrete Breaker, Heavy Duty Electric Jack Hammer 4pcs Chisels Bit with Gloves, 360° Swiveling Front Handle for Trenching and Breaking Holes
(1,443)
198.9
198.9
Deal after registering
Member discounted price
0% cash back at checkout.
198.9
Non-PRO Account
198.9
Save
Non-PRO Account
In Stock.
New
VEVOR Diamond Core Drilling Machine, Max 8" Drilling Capacity, 2-in-1 Handheld/Stand-Mount Dry and Wet Concrete Core Drill Rig with 4 Drill Bits, Rolling Wheeled Base, 1500W 2-Speed 950RPM/2200RPM
(2)
433.99
433.99
Deal after registering
Member discounted price
0% cash back at checkout.
433.99
Non-PRO Account
433.99
Save
Non-PRO Account
In Stock.
New
VEVOR Diamond Core Drilling Machine, 0.8-12 in Drilling Capacity, Dry/Wet Concrete Core Drill Rig with 12 Drill Bits, Tiltable Stand & Wheeled Base, 3200W 800RPM/430RPM, UNC1 1/4–7 Thread
(2)
1579.9
1579.9
Deal after registering
Member discounted price
0% cash back at checkout.
1579.9
Non-PRO Account
1579.9
Save
Non-PRO Account
In Stock.
VEVOR Rotary Hammer Drill, 1-1/8 in SDS-Plus Electric Corded Heavy Duty Rotary Hammer, Including 3 Drill Bits, Flat Chisel, Pointed Chisel, Grease, Brush, and Carrying Case, for Concrete and Masonry
(124)
74.9
74.9
Deal after registering
Member discounted price
0% cash back at checkout.
74.9
Non-PRO Account
74.9
Save
Non-PRO Account
In Stock.
New
VEVOR Diamond Core Drilling Machine, 0.8–8 in Drilling Diameter, Rolling Dry and Wet Concrete Core Drill Rig with 8 Drill Bits & Wheeled Stand, 3000W 800 RPM Speed, UNC1 1/4–7 Thread
(2)
835.99
835.99
Deal after registering
Member discounted price
0% cash back at checkout.
835.99
Non-PRO Account
835.99
Save
Non-PRO Account
In Stock.
Deals
VEVOR Demolition Jack Hammer, 1400W Electric Jackhammer Heavy Duty, 2pcs Chisels Bits Chipping with Case, 2900 BPM Concrete Breaker, Gloves Black
(473)
74.61
82.9
Deal after registering
Member discounted price
0% cash back at checkout.
74.61
Non-PRO Account
74.61
Save
Non-PRO Account
In Stock.
VEVOR Rotary Hammer Drill, 1-1/8 in SDS-Plus Electric Corded Heavy Duty Rotary Hammer, 4 Functions, Including 3 Drill Bits, Flat Chisel, Pointed Chisel, and Carrying Case, for Concrete and Masonry
(124)
61.9
61.9
Deal after registering
Member discounted price
0% cash back at checkout.
61.9
Non-PRO Account
61.9
Save
Non-PRO Account
In Stock.
Deals
VEVOR Rotary Hammer Drill, 7/8 in SDS-Plus Cordless, 20V Battery Powered Rotary Hammer, Brushless, Including Battery, Charger, 3 Drill Bits, Flat Chisel, Pointed Chisel, Carrying Case, for Concrete
(124)
57.31
84.9
Deal after registering
Member discounted price
0% cash back at checkout.
57.31
Non-PRO Account
57.31
Save
Non-PRO Account
In Stock.
VEVOR Rotary Hammer Drill, 1-9/16 in SDS-Max Cordless, Heavy Duty 20V Battery Powered Rotary Hammer, Including 2 Batteries, Charger, Drill Bit, Pointed Chisel, Carrying Case, for Concrete, Masonry
(124)
140.9
140.9
Deal after registering
Member discounted price
0% cash back at checkout.
140.9
Non-PRO Account
140.9
Save
Non-PRO Account
In Stock.
VEVOR Drill Bit Set, 246 Pieces Drill and Driver Bit Set, Screwdriver Bit Set Suitable for Wood Metal Cement Drilling and Screw Driving, Drill Bit Sets Combo Kit Assorted in Organized Carrying Case
(61)
46.9
46.9
Deal after registering
Member discounted price
0% cash back at checkout.
46.9
Non-PRO Account
46.9
Save
Non-PRO Account
In Stock.
VEVOR Drill Bit Set, 100 Pieces Drill and Driver Bit Set, Screwdriver Bit Set Suitable for Wood Metal Cement Drilling and Screw Driving, Drill Bit Sets Combo Kit Assorted in Organized Carrying Case
(61)
26.99
26.99
Deal after registering
Member discounted price
0% cash back at checkout.
26.99
Non-PRO Account
26.99
Save
Non-PRO Account
In Stock.
VEVOR Bull Float Manganese Steel Concrete Float 1200x300mm Concrete Float Tool Cement Tool Bull Concrete Kit Bull Pool Float Bull Float Handle Bull Float Bracket Concrete Tool Finishing Bull Float
(216)
118.99
118.99
Deal after registering
Member discounted price
0% cash back at checkout.
118.99
Non-PRO Account
118.99
Save
Non-PRO Account
In Stock.
Deals
VEVOR Drill Bit Set, 101 Pieces Drill and Driver Bit Set, Screwdriver Bit Set Suitable for Wood Metal Cement Drilling and Screw Driving, Drill Bit Sets Combo Kit Assorted in Organized Carrying Case
(61)
21.33
28.9
Deal after registering
Member discounted price
0% cash back at checkout.
21.33
Non-PRO Account
21.33
Save
Non-PRO Account
In Stock.
Deals
VEVOR Drill Bit Set, 70 Pieces Drill and Driver Bit Set, Screwdriver Bit Set Suitable for Wood Metal Cement Drilling and Screw Driving, Drill Bit Sets Combo Kit Assorted in Organized Carrying Case
(61)
21.06
28.9
Deal after registering
Member discounted price
0% cash back at checkout.
21.06
Non-PRO Account
21.06
Save
Non-PRO Account
In Stock.
VEVOR Bull Float Magnesium Concrete Float 48 x 8\" Round End Concrete Float Tool Cement Tool Bull Concrete Kit Bull Float with 4 Float Handle Bull Float Bracket Concrete Tools Finishing Bull Float
(216)
172.9
172.9
Deal after registering
Member discounted price
0% cash back at checkout.
172.9
Non-PRO Account
172.9
Save
Non-PRO Account
In Stock.
VEVOR Concrete Stamps, 91 x 3 inch, Concrete Molds Rectangular Polyurethane Stamp Stone Tile Texture Mat, Slate floor Imprint Seamless Stamp Mat Concrete Texturing Skin for Outdoor Decorative, Blue
(96)
62.9
62.9
Deal after registering
Member discounted price
0% cash back at checkout.
62.9
Non-PRO Account
62.9
Save
Non-PRO Account
In Stock.
VEVOR Diamond Core Drilling Machine, 0.8-10 in Drilling Diameter, Stand-Mount Dry and Wet Concrete Core Drill Rig with 10 Bits, 470/800 RPM 2-Speed, UNC1 1/4-7 Thread, for Concrete Brick Stone, 2500W
(404)
1247.9
1247.9
Deal after registering
Member discounted price
0% cash back at checkout.
1247.9
Non-PRO Account
1247.9
Save
Non-PRO Account
Extra 5% off with coupon
In Stock.
New
VEVOR Concrete Scarifier, 3700W 2500 RPM Walk-Behind Floor Planer Grinder, Carbide Cutters, 1/8 in Adjustable Depth, Vacuum Port for Surface Preparation, Traffic Line Removal, Pavement, Floor Repair
1339.9
1308.99
Deal after registering
Member discounted price
0% cash back at checkout.
1339.9
Non-PRO Account
1339.9
Save
Non-PRO Account
In Stock.
VEVOR Power Trowel, 46” Walk-Behind Cement Trowel with Float Pan, 14HP Gas-Powered Smooth Concrete Surface Finisher, Heavy Duty Commercial Screed Concrete Cement with Finishing Blade, Orange
(10)
2049.9
1926.99
Deal after registering
Member discounted price
0% cash back at checkout.
2049.9
Non-PRO Account
2049.9
Save
Non-PRO Account
Only 5 Left, order soon
Add to Cart
VEVOR Concrete Screws, 3/16 inch, 100 PCS 5 Different Lengths, Phillips Head, Masonry Screws with Drill Bits, Carbon Steel with Blue Coating, for Anchoring to Concrete, Masonry, Block, Brick and Wood
(7)
19.9
17.99
Deal after registering
Member discounted price
0% cash back at checkout.
19.9
Non-PRO Account
19.9
Save
Non-PRO Account
Out of Stock
Notify Me Registered
VEVOR Drill Bit Set, 318 Pieces Drill and Driver Bit Set, Screwdriver Bit Set Suitable for Wood Metal Cement Drilling and Screw Driving, Drill Bit Sets Combo Kit Assorted in Organized Carrying Case
(61)
39.99
45.99
Deal after registering
Member discounted price
0% cash back at checkout.
39.99
Non-PRO Account
39.99
Save
Non-PRO Account
Out of Stock
Notify Me Registered
Related searches
jackhammer bits near me jackhammer bits for concrete a drill bit best drill bits drill bits near me drill bit use chipping bits you drill bit drill all drill bits drill bits the best drill bits it drill bit drill bit drill bits different drill bits drill and drill bits
See more
VEVOR Demolition Jack Hammer, 1400W Electric Jackhammer Heavy Duty, 2900 BPM Concrete Breaker, 2pcs Chisels Bits Chipping with Case, Gloves
In Stock.
Add to Cart
1
You May Also Like
Today's Deals For You
Recently Viewed
Tips & Inspiration
Recommended Searches
nibbler cutter cost cutters cedar falls iowa vynil cutter best home use drill machine home use drill machine diamond wheel diamond polishing equipment diamond grind weed grinder diamond chair diamond rail fencing diamond rail fence diamond plate pegboard diamond pegboard diamond ripstop fabric diamond grid diamond polish machine price suri diamond polish machine marble diamond polish machine diamond dermabrasion machine portable diamond core tools