I bought these for drilling stained glass and fused glass, tried 8 pieces from the first box and one from another box, even a 2mm hole didn't start transparent glass (thin and fairly soft glass) rolled onto the surface. I have drilled glass for years and this is not what they describe. I tried scoring the edge of a piece of scrap glass with the coated side of the bat, but that didn't even work. I bought some 1mm bits from another supplier at Revain and they work great and still work great. I wanted 2mm and 3mm bits so bought this set - looked like the same box so I assumed they were from the same company - my mistake. Don't buy them for drilling glass or anything hard, which defeats the purpose of buying a diamond drill bit.
Energup Li-Ion Replacement Battery Pack For Black Decker Versapak VP Series With 2-Port Charger
43 Review
Set Of 2 VARSK Contour Gauges With Light (5" And 10"), Wide Shape Duplicator Profile Tool For Accurate Measuring Of Corners, Woodworking Templates, Tiles, And Laminate
45 Review
Linkstyle Universal Socket Wrench Set, 7Mm-19Mm Multi-Function Repair Kit With Drill Adapter Ratchet Gadget, Grip Hand Tools Gifts For Men Dad Husband Boyfriend DIY Handyman (4PCS)
44 Review
Energup 3.0Ah 40V MAX Replacement Battery For Black+Decker 40V LBX2040, LBXR36, LBXR2036, LST540 & More
40 Review
JAKEMY 69 In 1 Precision Ratchet Screwdriver Set For Household Repairs And Maintenance - Magnetic, Rotatable, And Disassemble Tool Kit For Furniture, Cars, Computers, And Electronics
29 Review
140Mm/150 Grit Diamond Needle File Set - 10 Piece HTS 101E0
30 Review
RoverTac 14-In-1 Multitool Pliers With Safety Lock: Perfect For Camping, Survival, And Simple Repairs
29 Review
Get The Job Done With DURATECH Flex-Head Ratcheting Wrench Set - 12-Piece Metric Set With Rolling Pouch
28 Review