DRILLPRO 5 pcs HSS Spiral Grooved Multiple Hole 50 Sizes Step Drill Bit Set with Aluminum Case
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DRILLPRO 5 pcs HSS Spiral Grooved Multiple Hole 50 Sizes Step Drill Bit Set with Aluminum Case
100% brand new and high quality Use for home and industrial Drop forged, heat treated, high-speed steel, fully polish Take the guessing out of drilling by supplying the proper depth for you
√How to use DRILLPRO HSS spiral grooved multiple hole step drill bit ? ▶Please mark the cross to confirm the center of the hole. ▶Use low speed to drill holes through the spiral grooves. ▶Then speed up the spiral grooves of the spiral grooves to avoid the running deviation of the ladder. ▶Used on sheet metal, sink, car repair, thin iron plate, aluminum, insulation board, PVC board timber thickness within 5mm. ▶Suitable for hand drill, bench drill.
√What to pay attention to? ▶While working on the side, water injection cooling can effectively prolong the service life of the drill bit, and recommend the drill speed of 250--400 RPM. ▶Please allow 1-3mm error due to manual measurement. please make sure you do not mind before you bid. ▶Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!
√Why Choose DRILLPRO ▶Good quality and reliable brand. ▶Within 90 days product quality is not completely satisfied, please CONTACT US, 100% refund. ▶24-hour feedback excellent customer service