Zhenjiang Scharp Machinery Tools Co., Ltd.  

Product Name: Solid Cap Screw Counterbore Model NO.: imperial & metric Material: High Speed Steel Coating: Coating Standard: Standard Size: M3 to M24 Type: Cutter Standards: 64 HRC Style: Universal Tool Structure: Integral Cutting Process: Boring Tool Work Type: Cut off Trademark: stc Transport Package: Plastic Box Specification: M3 to M24 Origin: Jiangsu HS Code: 82075090 Product Description They are made from high speed steel M2.They are used for enlaring holes for the socket heads of cap screws.Features an oversizes solid pilot.With striaght/round shank.Metric and imperial.Kinds of sets available.Screw SizePilot Diam.Cutter Diam.Shank Diam.5.141".221"3/16"60.150.2427/32811/6419/641/41013/6421/645/161/49/3213/323/85/1611/321/27/163/813/3219/321/27/1615/3211/161/21/217/3225/321/25/821/3231/323/43/413/161 3/161Screw SizePilot DiameterShank DiameterTotal Length10.752.2451.20.952.5451.41.12.8451.61.253.3561.81.453.85621.64.3562.52.0555632.55713.52.957143.35714.53.788054.2880658807612.510086.812.510097.812.5100108.512.51001210.212.5100